; flat assembler core
; Copyright (c) 1999-2009, Tomasz Grysztar.
; All rights reserved.
simple_instruction_except64:
cmp [code_type],64
je illegal_instruction
simple_instruction:
stos byte [edi]
jmp instruction_assembled
simple_instruction_only64:
cmp [code_type],64
jne illegal_instruction
jmp simple_instruction
simple_instruction_16bit_except64:
cmp [code_type],64
je illegal_instruction
simple_instruction_16bit:
cmp [code_type],16
jne size_prefix
stos byte [edi]
jmp instruction_assembled
size_prefix:
mov ah,al
mov al,66h
stos word [edi]
jmp instruction_assembled
simple_instruction_32bit_except64:
cmp [code_type],64
je illegal_instruction
simple_instruction_32bit:
cmp [code_type],16
je size_prefix
stos byte [edi]
jmp instruction_assembled
simple_instruction_64bit:
cmp [code_type],64
jne illegal_instruction
mov ah,al
mov al,48h
stos word [edi]
jmp instruction_assembled
simple_extended_instruction_64bit:
cmp [code_type],64
jne illegal_instruction
mov byte [edi],48h
inc edi
simple_extended_instruction:
mov ah,al
mov al,0Fh
stos word [edi]
jmp instruction_assembled
prefix_instruction:
stos byte [edi]
or [prefixed_instruction],-1
jmp continue_line
segment_prefix:
mov ah,al
shr ah,4
cmp ah,6
jne illegal_instruction
and al,1111b
mov [segment_register],al
call store_segment_prefix
or [prefixed_instruction],-1
jmp continue_line
int_instruction:
lods byte [esi]
call get_size_operator
cmp ah,1
ja invalid_operand_size
cmp al,'('
jne invalid_operand
call get_byte_value
mov ah,al
mov al,0CDh
stos word [edi]
jmp instruction_assembled
iret_instruction:
cmp [code_type],64
jne simple_instruction
call operand_64bit
jmp simple_instruction
aa_instruction:
cmp [code_type],64
je illegal_instruction
push eax
mov bl,10
cmp byte [esi],'('
jne aa_store
inc esi
xor al,al
xchg al,[operand_size]
cmp al,1
ja invalid_operand_size
call get_byte_value
mov bl,al
aa_store:
cmp [operand_size],0
jne invalid_operand
pop eax
mov ah,bl
stos word [edi]
jmp instruction_assembled
basic_instruction:
mov [base_code],al
lods byte [esi]
call get_size_operator
cmp al,10h
je basic_reg
cmp al,'['
jne invalid_operand
basic_mem:
call get_address
push edx ebx ecx
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,'('
je basic_mem_imm
cmp al,10h
jne invalid_operand
basic_mem_reg:
lods byte [esi]
call convert_register
mov [postbyte_register],al
pop ecx ebx edx
mov al,ah
cmp al,1
je instruction_ready
call operand_autodetect
inc [base_code]
instruction_ready:
call store_instruction
jmp instruction_assembled
basic_mem_imm:
mov al,[operand_size]
cmp al,1
jb basic_mem_imm_nosize
je basic_mem_imm_8bit
cmp al,2
je basic_mem_imm_16bit
cmp al,4
je basic_mem_imm_32bit
cmp al,8
jne invalid_operand_size
basic_mem_imm_64bit:
cmp [size_declared],0
jne long_immediate_not_encodable
call operand_64bit
call get_simm32
cmp [value_type],4
jae long_immediate_not_encodable
jmp basic_mem_imm_32bit_ok
basic_mem_imm_nosize:
cmp [error_line],0
jne basic_mem_imm_8bit
mov eax,[current_line]
mov [error_line],eax
mov [error],operand_size_not_specified
basic_mem_imm_8bit:
call get_byte_value
mov byte [value],al
mov al,[base_code]
shr al,3
mov [postbyte_register],al
pop ecx ebx edx
mov [base_code],80h
call store_instruction_with_imm8
jmp instruction_assembled
basic_mem_imm_16bit:
call operand_16bit
call get_word_value
mov word [value],ax
mov al,[base_code]
shr al,3
mov [postbyte_register],al
pop ecx ebx edx
cmp [value_type],0
jne basic_mem_imm_16bit_store
cmp [size_declared],0
jne basic_mem_imm_16bit_store
cmp word [value],80h
jb basic_mem_simm_8bit
cmp word [value],-80h
jae basic_mem_simm_8bit
basic_mem_imm_16bit_store:
mov [base_code],81h
call store_instruction_with_imm16
jmp instruction_assembled
basic_mem_simm_8bit:
mov [base_code],83h
call store_instruction_with_imm8
jmp instruction_assembled
basic_mem_imm_32bit:
call operand_32bit
call get_dword_value
basic_mem_imm_32bit_ok:
mov dword [value],eax
mov al,[base_code]
shr al,3
mov [postbyte_register],al
pop ecx ebx edx
cmp [value_type],0
jne basic_mem_imm_32bit_store
cmp [size_declared],0
jne basic_mem_imm_32bit_store
cmp dword [value],80h
jb basic_mem_simm_8bit
cmp dword [value],-80h
jae basic_mem_simm_8bit
basic_mem_imm_32bit_store:
mov [base_code],81h
call store_instruction_with_imm32
jmp instruction_assembled
get_simm32:
call get_qword_value
mov ecx,edx
cdq
cmp ecx,edx
jne value_out_of_range
cmp [value_type],4
jne get_simm32_ok
mov [value_type],2
get_simm32_ok:
ret
basic_reg:
lods byte [esi]
call convert_register
mov [postbyte_register],al
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
je basic_reg_reg
cmp al,'('
je basic_reg_imm
cmp al,'['
jne invalid_operand
basic_reg_mem:
call get_address
mov al,[operand_size]
cmp al,1
je basic_reg_mem_8bit
call operand_autodetect
add [base_code],3
jmp instruction_ready
basic_reg_mem_8bit:
add [base_code],2
jmp instruction_ready
basic_reg_reg:
lods byte [esi]
call convert_register
mov bl,[postbyte_register]
mov [postbyte_register],al
mov al,ah
cmp al,1
je nomem_instruction_ready
call operand_autodetect
inc [base_code]
nomem_instruction_ready:
call store_nomem_instruction
jmp instruction_assembled
basic_reg_imm:
mov al,[operand_size]
cmp al,1
je basic_reg_imm_8bit
cmp al,2
je basic_reg_imm_16bit
cmp al,4
je basic_reg_imm_32bit
cmp al,8
jne invalid_operand_size
basic_reg_imm_64bit:
cmp [size_declared],0
jne long_immediate_not_encodable
call operand_64bit
call get_simm32
cmp [value_type],4
jae long_immediate_not_encodable
jmp basic_reg_imm_32bit_ok
basic_reg_imm_8bit:
call get_byte_value
mov dl,al
mov bl,[base_code]
shr bl,3
xchg bl,[postbyte_register]
or bl,bl
jz basic_al_imm
mov [base_code],80h
call store_nomem_instruction
mov al,dl
stos byte [edi]
jmp instruction_assembled
basic_al_imm:
mov al,[base_code]
add al,4
stos byte [edi]
mov al,dl
stos byte [edi]
jmp instruction_assembled
basic_reg_imm_16bit:
call operand_16bit
call get_word_value
mov dx,ax
mov bl,[base_code]
shr bl,3
xchg bl,[postbyte_register]
cmp [value_type],0
jne basic_reg_imm_16bit_store
cmp [size_declared],0
jne basic_reg_imm_16bit_store
cmp dx,80h
jb basic_reg_simm_8bit
cmp dx,-80h
jae basic_reg_simm_8bit
basic_reg_imm_16bit_store:
or bl,bl
jz basic_ax_imm
mov [base_code],81h
call store_nomem_instruction
basic_store_imm_16bit:
mov ax,dx
call mark_relocation
stos word [edi]
jmp instruction_assembled
basic_reg_simm_8bit:
mov [base_code],83h
call store_nomem_instruction
mov al,dl
stos byte [edi]
jmp instruction_assembled
basic_ax_imm:
add [base_code],5
call store_instruction_code
jmp basic_store_imm_16bit
basic_reg_imm_32bit:
call operand_32bit
call get_dword_value
basic_reg_imm_32bit_ok:
mov edx,eax
mov bl,[base_code]
shr bl,3
xchg bl,[postbyte_register]
cmp [value_type],0
jne basic_reg_imm_32bit_store
cmp [size_declared],0
jne basic_reg_imm_32bit_store
cmp edx,80h
jb basic_reg_simm_8bit
cmp edx,-80h
jae basic_reg_simm_8bit
basic_reg_imm_32bit_store:
or bl,bl
jz basic_eax_imm
mov [base_code],81h
call store_nomem_instruction
basic_store_imm_32bit:
mov eax,edx
call mark_relocation
stos dword [edi]
jmp instruction_assembled
basic_eax_imm:
add [base_code],5
call store_instruction_code
jmp basic_store_imm_32bit
single_operand_instruction:
mov [base_code],0F6h
mov [postbyte_register],al
lods byte [esi]
call get_size_operator
cmp al,10h
je single_reg
cmp al,'['
jne invalid_operand
single_mem:
call get_address
mov al,[operand_size]
cmp al,1
je single_mem_8bit
jb single_mem_nosize
call operand_autodetect
inc [base_code]
jmp instruction_ready
single_mem_nosize:
cmp [error_line],0
jne single_mem_8bit
mov eax,[current_line]
mov [error_line],eax
mov [error],operand_size_not_specified
single_mem_8bit:
jmp instruction_ready
single_reg:
lods byte [esi]
call convert_register
mov bl,al
mov al,ah
cmp al,1
je single_reg_8bit
call operand_autodetect
inc [base_code]
single_reg_8bit:
jmp nomem_instruction_ready
mov_instruction:
mov [base_code],88h
lods byte [esi]
call get_size_operator
cmp al,10h
je mov_reg
cmp al,'['
jne invalid_operand
mov_mem:
call get_address
push edx ebx ecx
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,'('
je mov_mem_imm
cmp al,10h
jne invalid_operand
mov_mem_reg:
lods byte [esi]
cmp al,60h
jb mov_mem_general_reg
cmp al,70h
jb mov_mem_sreg
mov_mem_general_reg:
call convert_register
mov [postbyte_register],al
pop ecx ebx edx
cmp ah,1
je mov_mem_reg_8bit
mov al,ah
call operand_autodetect
mov al,[postbyte_register]
or al,bl
or al,bh
jz mov_mem_ax
inc [base_code]
jmp instruction_ready
mov_mem_reg_8bit:
or al,bl
or al,bh
jnz instruction_ready
mov_mem_al:
test ch,22h
jnz mov_mem_address16_al
test ch,44h
jnz mov_mem_address32_al
test ch,88h
jnz mov_mem_address64_al
or ch,ch
jnz invalid_address_size
cmp [code_type],64
je mov_mem_address64_al
cmp [code_type],32
je mov_mem_address32_al
cmp edx,10000h
jb mov_mem_address16_al
mov_mem_address32_al:
call store_segment_prefix_if_necessary
call address_32bit_prefix
mov [base_code],0A2h
store_mov_address32:
call store_instruction_code
call store_address_32bit_value
jmp instruction_assembled
mov_mem_address16_al:
call store_segment_prefix_if_necessary
call address_16bit_prefix
mov [base_code],0A2h
store_mov_address16:
cmp [code_type],64
je invalid_address
call store_instruction_code
mov eax,edx
stos word [edi]
cmp edx,10000h
jge value_out_of_range
jmp instruction_assembled
mov_mem_address64_al:
call store_segment_prefix_if_necessary
mov [base_code],0A2h
store_mov_address64:
call store_instruction_code
call store_address_64bit_value
jmp instruction_assembled
mov_mem_ax:
test ch,22h
jnz mov_mem_address16_ax
test ch,44h
jnz mov_mem_address32_ax
test ch,88h
jnz mov_mem_address64_ax
or ch,ch
jnz invalid_address_size
cmp [code_type],64
je mov_mem_address64_ax
cmp [code_type],32
je mov_mem_address32_ax
cmp edx,10000h
jb mov_mem_address16_ax
mov_mem_address32_ax:
call store_segment_prefix_if_necessary
call address_32bit_prefix
mov [base_code],0A3h
jmp store_mov_address32
mov_mem_address16_ax:
call store_segment_prefix_if_necessary
call address_16bit_prefix
mov [base_code],0A3h
jmp store_mov_address16
mov_mem_address64_ax:
call store_segment_prefix_if_necessary
mov [base_code],0A3h
jmp store_mov_address64
mov_mem_sreg:
sub al,61h
mov [postbyte_register],al
pop ecx ebx edx
mov ah,[operand_size]
or ah,ah
jz mov_mem_sreg_store
cmp ah,2
jne invalid_operand_size
mov_mem_sreg_store:
mov [base_code],8Ch
jmp instruction_ready
mov_mem_imm:
mov al,[operand_size]
cmp al,1
jb mov_mem_imm_nosize
je mov_mem_imm_8bit
cmp al,2
je mov_mem_imm_16bit
cmp al,4
je mov_mem_imm_32bit
cmp al,8
jne invalid_operand_size
mov_mem_imm_64bit:
cmp [size_declared],0
jne long_immediate_not_encodable
call operand_64bit
call get_simm32
cmp [value_type],4
jae long_immediate_not_encodable
jmp mov_mem_imm_32bit_store
mov_mem_imm_8bit:
call get_byte_value
mov byte [value],al
mov [postbyte_register],0
mov [base_code],0C6h
pop ecx ebx edx
call store_instruction_with_imm8
jmp instruction_assembled
mov_mem_imm_16bit:
call operand_16bit
call get_word_value
mov word [value],ax
mov [postbyte_register],0
mov [base_code],0C7h
pop ecx ebx edx
call store_instruction_with_imm16
jmp instruction_assembled
mov_mem_imm_nosize:
cmp [error_line],0
jne mov_mem_imm_32bit
mov eax,[current_line]
mov [error_line],eax
mov [error],operand_size_not_specified
mov_mem_imm_32bit:
call operand_32bit
call get_dword_value
mov_mem_imm_32bit_store:
mov dword [value],eax
mov [postbyte_register],0
mov [base_code],0C7h
pop ecx ebx edx
call store_instruction_with_imm32
jmp instruction_assembled
mov_reg:
lods byte [esi]
mov ah,al
sub ah,10h
and ah,al
test ah,0F0h
jnz mov_sreg
call convert_register
mov [postbyte_register],al
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,'['
je mov_reg_mem
cmp al,'('
je mov_reg_imm
cmp al,10h
jne invalid_operand
mov_reg_reg:
lods byte [esi]
mov ah,al
sub ah,10h
and ah,al
test ah,0F0h
jnz mov_reg_sreg
call convert_register
mov bl,[postbyte_register]
mov [postbyte_register],al
mov al,ah
cmp al,1
je mov_reg_reg_8bit
call operand_autodetect
inc [base_code]
mov_reg_reg_8bit:
jmp nomem_instruction_ready
mov_reg_sreg:
mov bl,[postbyte_register]
mov ah,al
and al,1111b
mov [postbyte_register],al
shr ah,4
cmp ah,5
je mov_reg_creg
cmp ah,7
je mov_reg_dreg
ja mov_reg_treg
dec [postbyte_register]
cmp [operand_size],8
je mov_reg_sreg64
cmp [operand_size],4
je mov_reg_sreg32
cmp [operand_size],2
jne invalid_operand_size
call operand_16bit
jmp mov_reg_sreg_store
mov_reg_sreg64:
call operand_64bit
jmp mov_reg_sreg_store
mov_reg_sreg32:
call operand_32bit
mov_reg_sreg_store:
mov [base_code],8Ch
jmp nomem_instruction_ready
mov_reg_treg:
cmp ah,9
jne invalid_operand
mov [extended_code],24h
jmp mov_reg_xrx
mov_reg_dreg:
mov [extended_code],21h
jmp mov_reg_xrx
mov_reg_creg:
mov [extended_code],20h
mov_reg_xrx:
mov [base_code],0Fh
cmp [code_type],64
je mov_reg_xrx_64bit
cmp [operand_size],4
jne invalid_operand_size
cmp [postbyte_register],8
jne mov_reg_xrx_store
cmp [extended_code],20h
jne mov_reg_xrx_store
mov al,0F0h
stos byte [edi]
mov [postbyte_register],0
mov_reg_xrx_store:
jmp nomem_instruction_ready
mov_reg_xrx_64bit:
cmp [operand_size],8
jne invalid_operand_size
jmp nomem_instruction_ready
mov_reg_mem:
call get_address
mov al,[operand_size]
cmp al,1
je mov_reg_mem_8bit
call operand_autodetect
mov al,[postbyte_register]
or al,bl
or al,bh
jz mov_ax_mem
add [base_code],3
jmp instruction_ready
mov_reg_mem_8bit:
mov al,[postbyte_register]
or al,bl
or al,bh
jz mov_al_mem
add [base_code],2
jmp instruction_ready
mov_al_mem:
test ch,22h
jnz mov_al_mem_address16
test ch,44h
jnz mov_al_mem_address32
test ch,88h
jnz mov_al_mem_address64
or ch,ch
jnz invalid_address_size
cmp [code_type],64
je mov_al_mem_address64
cmp [code_type],32
je mov_al_mem_address32
cmp edx,10000h
jb mov_al_mem_address16
mov_al_mem_address32:
call store_segment_prefix_if_necessary
call address_32bit_prefix
mov [base_code],0A0h
jmp store_mov_address32
mov_al_mem_address16:
call store_segment_prefix_if_necessary
call address_16bit_prefix
mov [base_code],0A0h
jmp store_mov_address16
mov_al_mem_address64:
call store_segment_prefix_if_necessary
mov [base_code],0A0h
jmp store_mov_address64
mov_ax_mem:
test ch,22h
jnz mov_ax_mem_address16
test ch,44h
jnz mov_ax_mem_address32
test ch,88h
jnz mov_ax_mem_address64
or ch,ch
jnz invalid_address_size
cmp [code_type],64
je mov_ax_mem_address64
cmp [code_type],32
je mov_ax_mem_address32
cmp edx,10000h
jb mov_ax_mem_address16
mov_ax_mem_address32:
call store_segment_prefix_if_necessary
call address_32bit_prefix
mov [base_code],0A1h
jmp store_mov_address32
mov_ax_mem_address16:
call store_segment_prefix_if_necessary
call address_16bit_prefix
mov [base_code],0A1h
jmp store_mov_address16
mov_ax_mem_address64:
call store_segment_prefix_if_necessary
mov [base_code],0A1h
jmp store_mov_address64
mov_reg_imm:
mov al,[operand_size]
cmp al,1
je mov_reg_imm_8bit
cmp al,2
je mov_reg_imm_16bit
cmp al,4
je mov_reg_imm_32bit
cmp al,8
jne invalid_operand_size
mov_reg_imm_64bit:
call operand_64bit
call get_qword_value
mov ecx,edx
cmp [size_declared],0
jne mov_reg_imm_64bit_store
cmp [value_type],4
jae mov_reg_imm_64bit_store
cdq
cmp ecx,edx
je mov_reg_64bit_imm_32bit
mov_reg_imm_64bit_store:
push eax ecx
mov al,0B8h
call store_mov_reg_imm_code
pop edx eax
call mark_relocation
stos dword [edi]
mov eax,edx
stos dword [edi]
jmp instruction_assembled
mov_reg_imm_8bit:
call get_byte_value
mov dl,al
mov al,0B0h
call store_mov_reg_imm_code
mov al,dl
stos byte [edi]
jmp instruction_assembled
mov_reg_imm_16bit:
call get_word_value
mov dx,ax
call operand_16bit
mov al,0B8h
call store_mov_reg_imm_code
mov ax,dx
call mark_relocation
stos word [edi]
jmp instruction_assembled
mov_reg_imm_32bit:
call operand_32bit
call get_dword_value
mov edx,eax
mov al,0B8h
call store_mov_reg_imm_code
mov_store_imm_32bit:
mov eax,edx
call mark_relocation
stos dword [edi]
jmp instruction_assembled
store_mov_reg_imm_code:
mov ah,[postbyte_register]
test ah,1000b
jz mov_reg_imm_prefix_ok
or [rex_prefix],41h
mov_reg_imm_prefix_ok:
and ah,111b
add al,ah
mov [base_code],al
call store_instruction_code
ret
mov_reg_64bit_imm_32bit:
mov edx,eax
mov bl,[postbyte_register]
mov [postbyte_register],0
mov [base_code],0C7h
call store_nomem_instruction
jmp mov_store_imm_32bit
mov_sreg:
mov ah,al
and al,1111b
mov [postbyte_register],al
shr ah,4
cmp ah,5
je mov_creg
cmp ah,7
je mov_dreg
ja mov_treg
cmp al,2
je illegal_instruction
dec [postbyte_register]
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,'['
je mov_sreg_mem
cmp al,10h
jne invalid_operand
mov_sreg_reg:
lods byte [esi]
call convert_register
or ah,ah
jz mov_sreg_reg_size_ok
cmp ah,2
jne invalid_operand_size
mov bl,al
mov_sreg_reg_size_ok:
mov [base_code],8Eh
jmp nomem_instruction_ready
mov_sreg_mem:
call get_address
mov al,[operand_size]
or al,al
jz mov_sreg_mem_size_ok
cmp al,2
jne invalid_operand_size
mov_sreg_mem_size_ok:
mov [base_code],8Eh
jmp instruction_ready
mov_treg:
cmp ah,9
jne invalid_operand
mov [extended_code],26h
jmp mov_xrx
mov_dreg:
mov [extended_code],23h
jmp mov_xrx
mov_creg:
mov [extended_code],22h
mov_xrx:
mov [base_code],0Fh
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
mov bl,al
cmp [code_type],64
je mov_xrx_64bit
cmp ah,4
jne invalid_operand_size
cmp [postbyte_register],8
jne mov_xrx_store
cmp [extended_code],22h
jne mov_xrx_store
mov al,0F0h
stos byte [edi]
mov [postbyte_register],0
mov_xrx_store:
jmp nomem_instruction_ready
mov_xrx_64bit:
cmp ah,8
je mov_xrx_store
jmp invalid_operand_size
cmov_instruction:
mov [base_code],0Fh
mov [extended_code],al
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
mov [postbyte_register],al
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,'['
je cmov_reg_mem
cmp al,10h
jne invalid_operand
cmov_reg_reg:
lods byte [esi]
call convert_register
mov bl,al
mov al,ah
call operand_autodetect
jmp nomem_instruction_ready
cmov_reg_mem:
call get_address
mov al,[operand_size]
call operand_autodetect
jmp instruction_ready
test_instruction:
mov [base_code],84h
lods byte [esi]
call get_size_operator
cmp al,10h
je test_reg
cmp al,'['
jne invalid_operand
test_mem:
call get_address
push edx ebx ecx
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,'('
je test_mem_imm
cmp al,10h
jne invalid_operand
test_mem_reg:
lods byte [esi]
call convert_register
mov [postbyte_register],al
pop ecx ebx edx
mov al,ah
cmp al,1
je test_mem_reg_8bit
call operand_autodetect
inc [base_code]
test_mem_reg_8bit:
jmp instruction_ready
test_mem_imm:
mov al,[operand_size]
cmp al,1
jb test_mem_imm_nosize
je test_mem_imm_8bit
cmp al,2
je test_mem_imm_16bit
cmp al,4
je test_mem_imm_32bit
cmp al,8
jne invalid_operand_size
test_mem_imm_64bit:
cmp [size_declared],0
jne long_immediate_not_encodable
call operand_64bit
call get_simm32
cmp [value_type],4
jae long_immediate_not_encodable
jmp test_mem_imm_32bit_store
test_mem_imm_8bit:
call get_byte_value
mov byte [value],al
mov [postbyte_register],0
mov [base_code],0F6h
pop ecx ebx edx
call store_instruction_with_imm8
jmp instruction_assembled
test_mem_imm_16bit:
call operand_16bit
call get_word_value
mov word [value],ax
mov [postbyte_register],0
mov [base_code],0F7h
pop ecx ebx edx
call store_instruction_with_imm16
jmp instruction_assembled
test_mem_imm_nosize:
cmp [error_line],0
jne test_mem_imm_32bit
mov eax,[current_line]
mov [error_line],eax
mov [error],operand_size_not_specified
test_mem_imm_32bit:
call operand_32bit
call get_dword_value
test_mem_imm_32bit_store:
mov dword [value],eax
mov [postbyte_register],0
mov [base_code],0F7h
pop ecx ebx edx
call store_instruction_with_imm32
jmp instruction_assembled
test_reg:
lods byte [esi]
call convert_register
mov [postbyte_register],al
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,'['
je test_reg_mem
cmp al,'('
je test_reg_imm
cmp al,10h
jne invalid_operand
test_reg_reg:
lods byte [esi]
call convert_register
mov bl,[postbyte_register]
mov [postbyte_register],al
mov al,ah
cmp al,1
je test_reg_reg_8bit
call operand_autodetect
inc [base_code]
test_reg_reg_8bit:
jmp nomem_instruction_ready
test_reg_imm:
mov al,[operand_size]
cmp al,1
je test_reg_imm_8bit
cmp al,2
je test_reg_imm_16bit
cmp al,4
je test_reg_imm_32bit
cmp al,8
jne invalid_operand_size
test_reg_imm_64bit:
cmp [size_declared],0
jne long_immediate_not_encodable
call operand_64bit
call get_simm32
cmp [value_type],4
jae long_immediate_not_encodable
jmp test_reg_imm_32bit_store
test_reg_imm_8bit:
call get_byte_value
mov dl,al
mov bl,[postbyte_register]
mov [postbyte_register],0
mov [base_code],0F6h
or bl,bl
jz test_al_imm
call store_nomem_instruction
mov al,dl
stos byte [edi]
jmp instruction_assembled
test_al_imm:
mov [base_code],0A8h
call store_instruction_code
mov al,dl
stos byte [edi]
jmp instruction_assembled
test_reg_imm_16bit:
call operand_16bit
call get_word_value
mov dx,ax
mov bl,[postbyte_register]
mov [postbyte_register],0
mov [base_code],0F7h
or bl,bl
jz test_ax_imm
call store_nomem_instruction
mov ax,dx
call mark_relocation
stos word [edi]
jmp instruction_assembled
test_ax_imm:
mov [base_code],0A9h
call store_instruction_code
mov ax,dx
stos word [edi]
jmp instruction_assembled
test_reg_imm_32bit:
call operand_32bit
call get_dword_value
test_reg_imm_32bit_store:
mov edx,eax
mov bl,[postbyte_register]
mov [postbyte_register],0
mov [base_code],0F7h
or bl,bl
jz test_eax_imm
call store_nomem_instruction
mov eax,edx
call mark_relocation
stos dword [edi]
jmp instruction_assembled
test_eax_imm:
mov [base_code],0A9h
call store_instruction_code
mov eax,edx
stos dword [edi]
jmp instruction_assembled
test_reg_mem:
call get_address
mov al,[operand_size]
cmp al,1
je test_reg_mem_8bit
call operand_autodetect
inc [base_code]
test_reg_mem_8bit:
jmp instruction_ready
xchg_instruction:
mov [base_code],86h
lods byte [esi]
call get_size_operator
cmp al,10h
je xchg_reg
cmp al,'['
jne invalid_operand
xchg_mem:
call get_address
push edx ebx ecx
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
je test_mem_reg
jmp invalid_operand
xchg_reg:
lods byte [esi]
call convert_register
mov [postbyte_register],al
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,'['
je test_reg_mem
cmp al,10h
jne invalid_operand
xchg_reg_reg:
lods byte [esi]
call convert_register
mov bl,al
mov al,ah
cmp al,1
je xchg_reg_reg_8bit
call operand_autodetect
cmp [postbyte_register],0
je xchg_ax_reg
or bl,bl
jnz xchg_reg_reg_store
mov bl,[postbyte_register]
xchg_ax_reg:
cmp [code_type],64
jne xchg_ax_reg_ok
cmp ah,4
jne xchg_ax_reg_ok
or bl,bl
jz xchg_reg_reg_store
xchg_ax_reg_ok:
test bl,1000b
jz xchg_ax_reg_store
or [rex_prefix],41h
and bl,111b
xchg_ax_reg_store:
add bl,90h
mov [base_code],bl
call store_instruction_code
jmp instruction_assembled
xchg_reg_reg_store:
inc [base_code]
xchg_reg_reg_8bit:
jmp nomem_instruction_ready
push_instruction:
mov [push_size],al
push_next:
lods byte [esi]
call get_size_operator
cmp al,10h
je push_reg
cmp al,'('
je push_imm
cmp al,'['
jne invalid_operand
push_mem:
call get_address
mov al,[operand_size]
mov ah,[push_size]
cmp al,2
je push_mem_16bit
cmp al,4
je push_mem_32bit
cmp al,8
je push_mem_64bit
or al,al
jnz invalid_operand_size
cmp ah,2
je push_mem_16bit
cmp ah,4
je push_mem_32bit
cmp ah,8
je push_mem_64bit
cmp [error_line],0
jne push_mem_store
mov eax,[current_line]
mov [error_line],eax
mov [error],operand_size_not_specified
jmp push_mem_store
push_mem_16bit:
test ah,not 2
jnz invalid_operand_size
call operand_16bit
jmp push_mem_store
push_mem_32bit:
test ah,not 4
jnz invalid_operand_size
cmp [code_type],64
je illegal_instruction
call operand_32bit
jmp push_mem_store
push_mem_64bit:
test ah,not 8
jnz invalid_operand_size
cmp [code_type],64
jne illegal_instruction
push_mem_store:
mov [base_code],0FFh
mov [postbyte_register],110b
call store_instruction
jmp push_done
push_reg:
lods byte [esi]
mov ah,al
sub ah,10h
and ah,al
test ah,0F0h
jnz push_sreg
call convert_register
test al,1000b
jz push_reg_ok
or [rex_prefix],41h
and al,111b
push_reg_ok:
add al,50h
mov [base_code],al
mov al,ah
mov ah,[push_size]
cmp al,2
je push_reg_16bit
cmp al,4
je push_reg_32bit
cmp al,8
jne invalid_operand_size
push_reg_64bit:
test ah,not 8
jnz invalid_operand_size
cmp [code_type],64
jne illegal_instruction
jmp push_reg_store
push_reg_32bit:
test ah,not 4
jnz invalid_operand_size
cmp [code_type],64
je illegal_instruction
call operand_32bit
jmp push_reg_store
push_reg_16bit:
test ah,not 2
jnz invalid_operand_size
call operand_16bit
push_reg_store:
call store_instruction_code
jmp push_done
push_sreg:
mov bl,al
mov dl,[operand_size]
mov dh,[push_size]
cmp dl,2
je push_sreg16
cmp dl,4
je push_sreg32
cmp dl,8
je push_sreg64
or dl,dl
jnz invalid_operand_size
cmp dh,2
je push_sreg16
cmp dh,4
je push_sreg32
cmp dh,8
je push_sreg64
jmp push_sreg_store
push_sreg16:
test dh,not 2
jnz invalid_operand_size
call operand_16bit
jmp push_sreg_store
push_sreg32:
test dh,not 4
jnz invalid_operand_size
cmp [code_type],64
je illegal_instruction
call operand_32bit
jmp push_sreg_store
push_sreg64:
test dh,not 8
jnz invalid_operand_size
cmp [code_type],64
jne illegal_instruction
push_sreg_store:
mov al,bl
cmp al,70h
jae invalid_operand
sub al,61h
jc invalid_operand
cmp al,4
jae push_sreg_386
shl al,3
add al,6
mov [base_code],al
cmp [code_type],64
je illegal_instruction
jmp push_reg_store
push_sreg_386:
sub al,4
shl al,3
add al,0A0h
mov [extended_code],al
mov [base_code],0Fh
jmp push_reg_store
push_imm:
mov al,[operand_size]
mov ah,[push_size]
or al,al
je push_imm_size_ok
or ah,ah
je push_imm_size_ok
cmp al,ah
jne invalid_operand_size
push_imm_size_ok:
cmp al,2
je push_imm_16bit
cmp al,4
je push_imm_32bit
cmp al,8
je push_imm_64bit
cmp ah,2
je push_imm_optimized_16bit
cmp ah,4
je push_imm_optimized_32bit
cmp ah,8
je push_imm_optimized_64bit
or al,al
jnz invalid_operand_size
cmp [code_type],16
je push_imm_optimized_16bit
cmp [code_type],32
je push_imm_optimized_32bit
push_imm_optimized_64bit:
cmp [code_type],64
jne illegal_instruction
call get_simm32
mov edx,eax
cmp [value_type],0
jne push_imm_32bit_store
cmp eax,-80h
jl push_imm_32bit_store
cmp eax,80h
jge push_imm_32bit_store
jmp push_imm_8bit
push_imm_optimized_32bit:
cmp [code_type],64
je illegal_instruction
call get_dword_value
mov edx,eax
call operand_32bit
cmp [value_type],0
jne push_imm_32bit_store
cmp eax,-80h
jl push_imm_32bit_store
cmp eax,80h
jge push_imm_32bit_store
jmp push_imm_8bit
push_imm_optimized_16bit:
call get_word_value
mov dx,ax
call operand_16bit
cmp [value_type],0
jne push_imm_16bit_store
cmp ax,-80h
jl push_imm_16bit_store
cmp ax,80h
jge push_imm_16bit_store
push_imm_8bit:
mov ah,al
mov [base_code],6Ah
call store_instruction_code
mov al,ah
stos byte [edi]
jmp push_done
push_imm_16bit:
call get_word_value
mov dx,ax
call operand_16bit
push_imm_16bit_store:
mov [base_code],68h
call store_instruction_code
mov ax,dx
call mark_relocation
stos word [edi]
jmp push_done
push_imm_64bit:
cmp [code_type],64
jne illegal_instruction
call get_simm32
mov edx,eax
jmp push_imm_32bit_store
push_imm_32bit:
cmp [code_type],64
je illegal_instruction
call get_dword_value
mov edx,eax
call operand_32bit
push_imm_32bit_store:
mov [base_code],68h
call store_instruction_code
mov eax,edx
call mark_relocation
stos dword [edi]
push_done:
lods byte [esi]
dec esi
cmp al,0Fh
je instruction_assembled
or al,al
jz instruction_assembled
mov [operand_size],0
mov [size_override],0
mov [operand_prefix],0
mov [rex_prefix],0
jmp push_next
pop_instruction:
mov [push_size],al
pop_next:
lods byte [esi]
call get_size_operator
cmp al,10h
je pop_reg
cmp al,'['
jne invalid_operand
pop_mem:
call get_address
mov al,[operand_size]
mov ah,[push_size]
cmp al,2
je pop_mem_16bit
cmp al,4
je pop_mem_32bit
cmp al,8
je pop_mem_64bit
or al,al
jnz invalid_operand_size
cmp ah,2
je pop_mem_16bit
cmp ah,4
je pop_mem_32bit
cmp ah,8
je pop_mem_64bit
cmp [error_line],0
jne pop_mem_store
mov eax,[current_line]
mov [error_line],eax
mov [error],operand_size_not_specified
jmp pop_mem_store
pop_mem_16bit:
test ah,not 2
jnz invalid_operand_size
call operand_16bit
jmp pop_mem_store
pop_mem_32bit:
test ah,not 4
jnz invalid_operand_size
cmp [code_type],64
je illegal_instruction
call operand_32bit
jmp pop_mem_store
pop_mem_64bit:
test ah,not 8
jnz invalid_operand_size
cmp [code_type],64
jne illegal_instruction
pop_mem_store:
mov [base_code],08Fh
mov [postbyte_register],0
call store_instruction
jmp pop_done
pop_reg:
lods byte [esi]
mov ah,al
sub ah,10h
and ah,al
test ah,0F0h
jnz pop_sreg
call convert_register
test al,1000b
jz pop_reg_ok
or [rex_prefix],41h
and al,111b
pop_reg_ok:
add al,58h
mov [base_code],al
mov al,ah
mov ah,[push_size]
cmp al,2
je pop_reg_16bit
cmp al,4
je pop_reg_32bit
cmp al,8
je pop_reg_64bit
jmp invalid_operand_size
pop_reg_64bit:
test ah,not 8
jnz invalid_operand_size
cmp [code_type],64
jne illegal_instruction
jmp pop_reg_store
pop_reg_32bit:
test ah,not 4
jnz invalid_operand_size
cmp [code_type],64
je illegal_instruction
call operand_32bit
jmp pop_reg_store
pop_reg_16bit:
test ah,not 2
jnz invalid_operand_size
call operand_16bit
pop_reg_store:
call store_instruction_code
pop_done:
lods byte [esi]
dec esi
cmp al,0Fh
je instruction_assembled
or al,al
jz instruction_assembled
mov [operand_size],0
mov [size_override],0
mov [operand_prefix],0
mov [rex_prefix],0
jmp pop_next
pop_sreg:
mov dl,[operand_size]
mov dh,[push_size]
cmp al,62h
je pop_cs
mov bl,al
cmp dl,2
je pop_sreg16
cmp dl,4
je pop_sreg32
cmp dl,8
je pop_sreg64
or dl,dl
jnz invalid_operand_size
cmp dh,2
je pop_sreg16
cmp dh,4
je pop_sreg32
cmp dh,8
je pop_sreg64
jmp pop_sreg_store
pop_sreg16:
test dh,not 2
jnz invalid_operand_size
call operand_16bit
jmp pop_sreg_store
pop_sreg32:
test dh,not 4
jnz invalid_operand_size
cmp [code_type],64
je illegal_instruction
call operand_32bit
jmp pop_sreg_store
pop_sreg64:
test dh,not 8
jnz invalid_operand_size
cmp [code_type],64
jne illegal_instruction
pop_sreg_store:
mov al,bl
cmp al,70h
jae invalid_operand
sub al,61h
jc invalid_operand
cmp al,4
jae pop_sreg_386
shl al,3
add al,7
mov [base_code],al
cmp [code_type],64
je illegal_instruction
jmp pop_reg_store
pop_cs:
cmp [code_type],16
jne illegal_instruction
cmp dl,2
je pop_cs_store
or dl,dl
jnz invalid_operand_size
cmp dh,2
je pop_cs_store
or dh,dh
jnz illegal_instruction
pop_cs_store:
test dh,not 2
jnz invalid_operand_size
mov al,0Fh
stos byte [edi]
jmp pop_done
pop_sreg_386:
sub al,4
shl al,3
add al,0A1h
mov [extended_code],al
mov [base_code],0Fh
jmp pop_reg_store
inc_instruction:
mov [base_code],al
lods byte [esi]
call get_size_operator
cmp al,10h
je inc_reg
cmp al,'['
je inc_mem
jne invalid_operand
inc_mem:
call get_address
mov al,[operand_size]
cmp al,1
je inc_mem_8bit
jb inc_mem_nosize
call operand_autodetect
mov al,0FFh
xchg al,[base_code]
mov [postbyte_register],al
jmp instruction_ready
inc_mem_nosize:
cmp [error_line],0
jne inc_mem_8bit
mov eax,[current_line]
mov [error_line],eax
mov [error],operand_size_not_specified
inc_mem_8bit:
mov al,0FEh
xchg al,[base_code]
mov [postbyte_register],al
jmp instruction_ready
inc_reg:
lods byte [esi]
call convert_register
mov bl,al
mov al,0FEh
xchg al,[base_code]
mov [postbyte_register],al
mov al,ah
cmp al,1
je inc_reg_8bit
call operand_autodetect
cmp [code_type],64
je inc_reg_long_form
mov al,[postbyte_register]
shl al,3
add al,bl
add al,40h
mov [base_code],al
call store_instruction_code
jmp instruction_assembled
inc_reg_long_form:
inc [base_code]
inc_reg_8bit:
jmp nomem_instruction_ready
set_instruction:
mov [base_code],0Fh
mov [extended_code],al
lods byte [esi]
call get_size_operator
cmp al,10h
je set_reg
cmp al,'['
jne invalid_operand
set_mem:
call get_address
cmp [operand_size],1
ja invalid_operand_size
mov [postbyte_register],0
jmp instruction_ready
set_reg:
lods byte [esi]
call convert_register
cmp ah,1
jne invalid_operand_size
mov bl,al
mov [postbyte_register],0
jmp nomem_instruction_ready
arpl_instruction:
cmp [code_type],64
je illegal_instruction
mov [base_code],63h
lods byte [esi]
call get_size_operator
cmp al,10h
je arpl_reg
cmp al,'['
jne invalid_operand
call get_address
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
mov [postbyte_register],al
cmp ah,2
jne invalid_operand_size
jmp instruction_ready
arpl_reg:
lods byte [esi]
call convert_register
cmp ah,2
jne invalid_operand_size
mov bl,al
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
mov [postbyte_register],al
jmp nomem_instruction_ready
bound_instruction:
cmp [code_type],64
je illegal_instruction
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
mov [postbyte_register],al
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,'['
jne invalid_operand
call get_address
mov al,[operand_size]
cmp al,2
je bound_store
cmp al,4
jne invalid_operand_size
bound_store:
call operand_autodetect
mov [base_code],62h
jmp instruction_ready
enter_instruction:
lods byte [esi]
call get_size_operator
cmp ah,2
je enter_imm16_size_ok
or ah,ah
jnz invalid_operand_size
enter_imm16_size_ok:
cmp al,'('
jne invalid_operand
call get_word_value
cmp [next_pass_needed],0
jne enter_imm16_ok
cmp [value_type],0
jne invalid_use_of_symbol
enter_imm16_ok:
push eax
mov [operand_size],0
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp ah,1
je enter_imm8_size_ok
or ah,ah
jnz invalid_operand_size
enter_imm8_size_ok:
cmp al,'('
jne invalid_operand
call get_byte_value
mov dl,al
pop ebx
mov al,0C8h
stos byte [edi]
mov ax,bx
stos word [edi]
mov al,dl
stos byte [edi]
jmp instruction_assembled
ret_instruction_only64:
cmp [code_type],64
jne illegal_instruction
jmp ret_instruction
ret_instruction_32bit_except64:
cmp [code_type],64
je illegal_instruction
ret_instruction_32bit:
call operand_32bit
jmp ret_instruction
ret_instruction_16bit:
call operand_16bit
jmp ret_instruction
retf_instruction:
cmp [code_type],64
jne ret_instruction
ret_instruction_64bit:
call operand_64bit
ret_instruction:
mov [base_code],al
lods byte [esi]
dec esi
or al,al
jz simple_ret
cmp al,0Fh
je simple_ret
lods byte [esi]
call get_size_operator
or ah,ah
jz ret_imm
cmp ah,2
je ret_imm
jmp invalid_operand_size
ret_imm:
cmp al,'('
jne invalid_operand
call get_word_value
cmp [next_pass_needed],0
jne ret_imm_ok
cmp [value_type],0
jne invalid_use_of_symbol
ret_imm_ok:
cmp [size_declared],0
jne ret_imm_store
or ax,ax
jz simple_ret
ret_imm_store:
mov dx,ax
call store_instruction_code
mov ax,dx
stos word [edi]
jmp instruction_assembled
simple_ret:
inc [base_code]
call store_instruction_code
jmp instruction_assembled
lea_instruction:
mov [base_code],8Dh
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
mov [postbyte_register],al
lods byte [esi]
cmp al,','
jne invalid_operand
xor al,al
xchg al,[operand_size]
push eax
lods byte [esi]
call get_size_operator
cmp al,'['
jne invalid_operand
mov [size_override],-1
call get_address
pop eax
mov [operand_size],al
call operand_autodetect
jmp instruction_ready
ls_instruction:
or al,al
jz les_instruction
cmp al,3
jz lds_instruction
add al,0B0h
mov [extended_code],al
mov [base_code],0Fh
jmp ls_code_ok
les_instruction:
mov [base_code],0C4h
jmp ls_short_code
lds_instruction:
mov [base_code],0C5h
ls_short_code:
cmp [code_type],64
je illegal_instruction
ls_code_ok:
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
mov [postbyte_register],al
lods byte [esi]
cmp al,','
jne invalid_operand
add [operand_size],2
lods byte [esi]
call get_size_operator
cmp al,'['
jne invalid_operand
call get_address
mov al,[operand_size]
cmp al,4
je ls_16bit
cmp al,6
je ls_32bit
cmp al,10
je ls_64bit
jmp invalid_operand_size
ls_16bit:
call operand_16bit
jmp instruction_ready
ls_32bit:
call operand_32bit
jmp instruction_ready
ls_64bit:
call operand_64bit
jmp instruction_ready
sh_instruction:
mov [postbyte_register],al
lods byte [esi]
call get_size_operator
cmp al,10h
je sh_reg
cmp al,'['
jne invalid_operand
sh_mem:
call get_address
push edx ebx ecx
mov al,[operand_size]
push eax
mov [operand_size],0
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,'('
je sh_mem_imm
cmp al,10h
jne invalid_operand
sh_mem_reg:
lods byte [esi]
cmp al,11h
jne invalid_operand
pop eax ecx ebx edx
cmp al,1
je sh_mem_cl_8bit
jb sh_mem_cl_nosize
call operand_autodetect
mov [base_code],0D3h
jmp instruction_ready
sh_mem_cl_nosize:
cmp [error_line],0
jne sh_mem_cl_8bit
mov eax,[current_line]
mov [error_line],eax
mov [error],operand_size_not_specified
sh_mem_cl_8bit:
mov [base_code],0D2h
jmp instruction_ready
sh_mem_imm:
mov al,[operand_size]
or al,al
jz sh_mem_imm_size_ok
cmp al,1
jne invalid_operand_size
sh_mem_imm_size_ok:
call get_byte_value
mov byte [value],al
pop eax ecx ebx edx
cmp al,1
je sh_mem_imm_8bit
jb sh_mem_imm_nosize
call operand_autodetect
cmp byte [value],1
je sh_mem_1
mov [base_code],0C1h
call store_instruction_with_imm8
jmp instruction_assembled
sh_mem_1:
mov [base_code],0D1h
jmp instruction_ready
sh_mem_imm_nosize:
cmp [error_line],0
jne sh_mem_imm_8bit
mov eax,[current_line]
mov [error_line],eax
mov [error],operand_size_not_specified
sh_mem_imm_8bit:
cmp byte [value],1
je sh_mem_1_8bit
mov [base_code],0C0h
call store_instruction_with_imm8
jmp instruction_assembled
sh_mem_1_8bit:
mov [base_code],0D0h
jmp instruction_ready
sh_reg:
lods byte [esi]
call convert_register
mov bx,ax
mov [operand_size],0
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,'('
je sh_reg_imm
cmp al,10h
jne invalid_operand
sh_reg_reg:
lods byte [esi]
cmp al,11h
jne invalid_operand
mov al,bh
cmp al,1
je sh_reg_cl_8bit
call operand_autodetect
mov [base_code],0D3h
jmp nomem_instruction_ready
sh_reg_cl_8bit:
mov [base_code],0D2h
jmp nomem_instruction_ready
sh_reg_imm:
mov al,[operand_size]
or al,al
jz sh_reg_imm_size_ok
cmp al,1
jne invalid_operand_size
sh_reg_imm_size_ok:
push ebx
call get_byte_value
mov dl,al
pop ebx
mov al,bh
cmp al,1
je sh_reg_imm_8bit
call operand_autodetect
cmp dl,1
je sh_reg_1
mov [base_code],0C1h
call store_nomem_instruction
mov al,dl
stos byte [edi]
jmp instruction_assembled
sh_reg_1:
mov [base_code],0D1h
jmp nomem_instruction_ready
sh_reg_imm_8bit:
cmp dl,1
je sh_reg_1_8bit
mov [base_code],0C0h
call store_nomem_instruction
mov al,dl
stos byte [edi]
jmp instruction_assembled
sh_reg_1_8bit:
mov [base_code],0D0h
jmp nomem_instruction_ready
shd_instruction:
mov [base_code],0Fh
mov [extended_code],al
lods byte [esi]
call get_size_operator
cmp al,10h
je shd_reg
cmp al,'['
jne invalid_operand
shd_mem:
call get_address
push edx ebx ecx
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
mov [postbyte_register],al
lods byte [esi]
cmp al,','
jne invalid_operand
mov al,ah
mov [operand_size],0
push eax
lods byte [esi]
call get_size_operator
cmp al,'('
je shd_mem_reg_imm
cmp al,10h
jne invalid_operand
lods byte [esi]
cmp al,11h
jne invalid_operand
pop eax ecx ebx edx
call operand_autodetect
inc [extended_code]
jmp instruction_ready
shd_mem_reg_imm:
mov al,[operand_size]
or al,al
jz shd_mem_reg_imm_size_ok
cmp al,1
jne invalid_operand_size
shd_mem_reg_imm_size_ok:
call get_byte_value
mov byte [value],al
pop eax ecx ebx edx
call operand_autodetect
call store_instruction_with_imm8
jmp instruction_assembled
shd_reg:
lods byte [esi]
call convert_register
mov [postbyte_register],al
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
mov bl,[postbyte_register]
mov [postbyte_register],al
mov al,ah
push eax ebx
lods byte [esi]
cmp al,','
jne invalid_operand
mov [operand_size],0
lods byte [esi]
call get_size_operator
cmp al,'('
je shd_reg_reg_imm
cmp al,10h
jne invalid_operand
lods byte [esi]
cmp al,11h
jne invalid_operand
pop ebx eax
call operand_autodetect
inc [extended_code]
jmp nomem_instruction_ready
shd_reg_reg_imm:
mov al,[operand_size]
or al,al
jz shd_reg_reg_imm_size_ok
cmp al,1
jne invalid_operand_size
shd_reg_reg_imm_size_ok:
call get_byte_value
mov dl,al
pop ebx eax
call operand_autodetect
call store_nomem_instruction
mov al,dl
stos byte [edi]
jmp instruction_assembled
movx_instruction:
mov [base_code],0Fh
mov [extended_code],al
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
mov [postbyte_register],al
mov al,ah
push eax
lods byte [esi]
cmp al,','
jne invalid_operand
mov [operand_size],0
lods byte [esi]
call get_size_operator
cmp al,10h
je movx_reg
cmp al,'['
jne invalid_operand
call get_address
pop eax
mov ah,[operand_size]
or ah,ah
jz movx_unknown_size
cmp ah,al
jae invalid_operand_size
cmp ah,1
je movx_mem_store
cmp ah,2
jne invalid_operand_size
inc [extended_code]
movx_mem_store:
call operand_autodetect
jmp instruction_ready
movx_unknown_size:
cmp [error_line],0
jne movx_mem_store
mov eax,[current_line]
mov [error_line],eax
mov [error],operand_size_not_specified
jmp movx_mem_store
movx_reg:
lods byte [esi]
call convert_register
pop ebx
xchg bl,al
cmp ah,al
jae invalid_operand_size
cmp ah,1
je movx_reg_8bit
cmp ah,2
je movx_reg_16bit
jmp invalid_operand_size
movx_reg_8bit:
call operand_autodetect
jmp nomem_instruction_ready
movx_reg_16bit:
call operand_autodetect
inc [extended_code]
jmp nomem_instruction_ready
movsxd_instruction:
mov [base_code],al
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
mov [postbyte_register],al
cmp ah,8
jne invalid_operand_size
lods byte [esi]
cmp al,','
jne invalid_operand
mov [operand_size],0
lods byte [esi]
call get_size_operator
cmp al,10h
je movsxd_reg
cmp al,'['
jne invalid_operand
call get_address
cmp [operand_size],4
je movsxd_mem_store
cmp [operand_size],0
jne invalid_operand_size
movsxd_mem_store:
call operand_64bit
jmp instruction_ready
movsxd_reg:
lods byte [esi]
call convert_register
cmp ah,4
jne invalid_operand_size
mov bl,al
call operand_64bit
jmp nomem_instruction_ready
bt_instruction:
mov [postbyte_register],al
shl al,3
add al,83h
mov [extended_code],al
mov [base_code],0Fh
lods byte [esi]
call get_size_operator
cmp al,10h
je bt_reg
cmp al,'['
jne invalid_operand
call get_address
push eax ebx ecx
lods byte [esi]
cmp al,','
jne invalid_operand
cmp byte [esi],'('
je bt_mem_imm
cmp byte [esi],11h
jne bt_mem_reg
cmp byte [esi+2],'('
je bt_mem_imm
bt_mem_reg:
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
mov [postbyte_register],al
pop ecx ebx edx
mov al,ah
call operand_autodetect
jmp instruction_ready
bt_mem_imm:
xor al,al
xchg al,[operand_size]
push eax
lods byte [esi]
call get_size_operator
cmp al,'('
jne invalid_operand
mov al,[operand_size]
or al,al
jz bt_mem_imm_size_ok
cmp al,1
jne invalid_operand_size
bt_mem_imm_size_ok:
call get_byte_value
mov byte [value],al
pop eax
or al,al
jz bt_mem_imm_nosize
call operand_autodetect
bt_mem_imm_store:
pop ecx ebx edx
mov [extended_code],0BAh
call store_instruction_with_imm8
jmp instruction_assembled
bt_mem_imm_nosize:
cmp [error_line],0
jne bt_mem_imm_store
mov eax,[current_line]
mov [error_line],eax
mov [error],operand_size_not_specified
jmp bt_mem_imm_store
bt_reg:
lods byte [esi]
call convert_register
mov bl,al
lods byte [esi]
cmp al,','
jne invalid_operand
cmp byte [esi],'('
je bt_reg_imm
cmp byte [esi],11h
jne bt_reg_reg
cmp byte [esi+2],'('
je bt_reg_imm
bt_reg_reg:
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
mov [postbyte_register],al
mov al,ah
call operand_autodetect
jmp nomem_instruction_ready
bt_reg_imm:
xor al,al
xchg al,[operand_size]
push eax ebx
lods byte [esi]
call get_size_operator
cmp al,'('
jne invalid_operand
mov al,[operand_size]
or al,al
jz bt_reg_imm_size_ok
cmp al,1
jne invalid_operand_size
bt_reg_imm_size_ok:
call get_byte_value
mov byte [value],al
pop ebx eax
call operand_autodetect
bt_reg_imm_store:
mov [extended_code],0BAh
call store_nomem_instruction
mov al,byte [value]
stos byte [edi]
jmp instruction_assembled
bs_instruction:
mov [extended_code],al
mov [base_code],0Fh
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
mov [postbyte_register],al
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
je bs_reg_reg
cmp al,'['
jne invalid_argument
call get_address
mov al,[operand_size]
call operand_autodetect
jmp instruction_ready
bs_reg_reg:
lods byte [esi]
call convert_register
mov bl,al
mov al,ah
call operand_autodetect
jmp nomem_instruction_ready
imul_instruction:
mov [base_code],0F6h
mov [postbyte_register],5
lods byte [esi]
call get_size_operator
cmp al,10h
je imul_reg
cmp al,'['
jne invalid_operand
imul_mem:
call get_address
mov al,[operand_size]
cmp al,1
je imul_mem_8bit
jb imul_mem_nosize
call operand_autodetect
inc [base_code]
jmp instruction_ready
imul_mem_nosize:
cmp [error_line],0
jne imul_mem_8bit
mov eax,[current_line]
mov [error_line],eax
mov [error],operand_size_not_specified
imul_mem_8bit:
jmp instruction_ready
imul_reg:
lods byte [esi]
call convert_register
cmp byte [esi],','
je imul_reg_
mov bl,al
mov al,ah
cmp al,1
je imul_reg_8bit
call operand_autodetect
inc [base_code]
imul_reg_8bit:
jmp nomem_instruction_ready
imul_reg_:
mov [postbyte_register],al
inc esi
cmp byte [esi],'('
je imul_reg_imm
cmp byte [esi],11h
jne imul_reg_noimm
cmp byte [esi+2],'('
je imul_reg_imm
imul_reg_noimm:
lods byte [esi]
call get_size_operator
cmp al,10h
je imul_reg_reg
cmp al,'['
jne invalid_operand
imul_reg_mem:
call get_address
push edx ebx ecx
cmp byte [esi],','
je imul_reg_mem_imm
mov al,[operand_size]
call operand_autodetect
pop ecx ebx edx
mov [base_code],0Fh
mov [extended_code],0AFh
jmp instruction_ready
imul_reg_mem_imm:
inc esi
lods byte [esi]
call get_size_operator
cmp al,'('
jne invalid_operand
mov al,[operand_size]
cmp al,2
je imul_reg_mem_imm_16bit
cmp al,4
je imul_reg_mem_imm_32bit
cmp al,8
jne invalid_operand_size
imul_reg_mem_imm_64bit:
cmp [size_declared],0
jne long_immediate_not_encodable
call operand_64bit
call get_simm32
cmp [value_type],4
jae long_immediate_not_encodable
jmp imul_reg_mem_imm_32bit_ok
imul_reg_mem_imm_16bit:
call operand_16bit
call get_word_value
mov word [value],ax
cmp [value_type],0
jne imul_reg_mem_imm_16bit_store
cmp [size_declared],0
jne imul_reg_mem_imm_16bit_store
cmp ax,-80h
jl imul_reg_mem_imm_16bit_store
cmp ax,80h
jl imul_reg_mem_imm_8bit_store
imul_reg_mem_imm_16bit_store:
pop ecx ebx edx
mov [base_code],69h
call store_instruction_with_imm16
jmp instruction_assembled
imul_reg_mem_imm_32bit:
call operand_32bit
call get_dword_value
imul_reg_mem_imm_32bit_ok:
mov dword [value],eax
cmp [value_type],0
jne imul_reg_mem_imm_32bit_store
cmp [size_declared],0
jne imul_reg_mem_imm_32bit_store
cmp eax,-80h
jl imul_reg_mem_imm_32bit_store
cmp eax,80h
jl imul_reg_mem_imm_8bit_store
imul_reg_mem_imm_32bit_store:
pop ecx ebx edx
mov [base_code],69h
call store_instruction_with_imm32
jmp instruction_assembled
imul_reg_mem_imm_8bit_store:
pop ecx ebx edx
mov [base_code],6Bh
call store_instruction_with_imm8
jmp instruction_assembled
imul_reg_imm:
mov bl,[postbyte_register]
dec esi
jmp imul_reg_reg_imm
imul_reg_reg:
lods byte [esi]
call convert_register
mov bl,al
cmp byte [esi],','
je imul_reg_reg_imm
mov al,ah
call operand_autodetect
mov [base_code],0Fh
mov [extended_code],0AFh
jmp nomem_instruction_ready
imul_reg_reg_imm:
inc esi
lods byte [esi]
call get_size_operator
cmp al,'('
jne invalid_operand
mov al,[operand_size]
cmp al,2
je imul_reg_reg_imm_16bit
cmp al,4
je imul_reg_reg_imm_32bit
cmp al,8
jne invalid_operand_size
imul_reg_reg_imm_64bit:
cmp [size_declared],0
jne long_immediate_not_encodable
call operand_64bit
push ebx
call get_simm32
cmp [value_type],4
jae long_immediate_not_encodable
jmp imul_reg_reg_imm_32bit_ok
imul_reg_reg_imm_16bit:
call operand_16bit
push ebx
call get_word_value
pop ebx
mov dx,ax
cmp [value_type],0
jne imul_reg_reg_imm_16bit_store
cmp [size_declared],0
jne imul_reg_reg_imm_16bit_store
cmp ax,-80h
jl imul_reg_reg_imm_16bit_store
cmp ax,80h
jl imul_reg_reg_imm_8bit_store
imul_reg_reg_imm_16bit_store:
mov [base_code],69h
call store_nomem_instruction
mov ax,dx
call mark_relocation
stos word [edi]
jmp instruction_assembled
imul_reg_reg_imm_32bit:
call operand_32bit
push ebx
call get_dword_value
imul_reg_reg_imm_32bit_ok:
pop ebx
mov edx,eax
cmp [value_type],0
jne imul_reg_reg_imm_32bit_store
cmp [size_declared],0
jne imul_reg_reg_imm_32bit_store
cmp eax,-80h
jl imul_reg_reg_imm_32bit_store
cmp eax,80h
jl imul_reg_reg_imm_8bit_store
imul_reg_reg_imm_32bit_store:
mov [base_code],69h
call store_nomem_instruction
mov eax,edx
call mark_relocation
stos dword [edi]
jmp instruction_assembled
imul_reg_reg_imm_8bit_store:
mov [base_code],6Bh
call store_nomem_instruction
mov al,dl
stos byte [edi]
jmp instruction_assembled
in_instruction:
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
or al,al
jnz invalid_operand
lods byte [esi]
cmp al,','
jne invalid_operand
mov al,ah
push eax
mov [operand_size],0
lods byte [esi]
call get_size_operator
cmp al,'('
je in_imm
cmp al,10h
je in_reg
jmp invalid_operand
in_reg:
lods byte [esi]
cmp al,22h
jne invalid_operand
pop eax
cmp al,1
je in_al_dx
cmp al,2
je in_ax_dx
cmp al,4
jne invalid_operand_size
in_ax_dx:
call operand_autodetect
mov [base_code],0EDh
call store_instruction_code
jmp instruction_assembled
in_al_dx:
mov al,0ECh
stos byte [edi]
jmp instruction_assembled
in_imm:
mov al,[operand_size]
or al,al
jz in_imm_size_ok
cmp al,1
jne invalid_operand_size
in_imm_size_ok:
call get_byte_value
mov dl,al
pop eax
cmp al,1
je in_al_imm
cmp al,2
je in_ax_imm
cmp al,4
jne invalid_operand_size
in_ax_imm:
call operand_autodetect
mov [base_code],0E5h
call store_instruction_code
mov al,dl
stos byte [edi]
jmp instruction_assembled
in_al_imm:
mov al,0E4h
stos byte [edi]
mov al,dl
stos byte [edi]
jmp instruction_assembled
out_instruction:
lods byte [esi]
call get_size_operator
cmp al,'('
je out_imm
cmp al,10h
jne invalid_operand
lods byte [esi]
cmp al,22h
jne invalid_operand
lods byte [esi]
cmp al,','
jne invalid_operand
mov [operand_size],0
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
or al,al
jnz invalid_operand
mov al,ah
cmp al,1
je out_dx_al
cmp al,2
je out_dx_ax
cmp al,4
jne invalid_operand_size
out_dx_ax:
call operand_autodetect
mov [base_code],0EFh
call store_instruction_code
jmp instruction_assembled
out_dx_al:
mov al,0EEh
stos byte [edi]
jmp instruction_assembled
out_imm:
mov al,[operand_size]
or al,al
jz out_imm_size_ok
cmp al,1
jne invalid_operand_size
out_imm_size_ok:
call get_byte_value
mov dl,al
lods byte [esi]
cmp al,','
jne invalid_operand
mov [operand_size],0
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
or al,al
jnz invalid_operand
mov al,ah
cmp al,1
je out_imm_al
cmp al,2
je out_imm_ax
cmp al,4
jne invalid_operand_size
out_imm_ax:
call operand_autodetect
mov [base_code],0E7h
call store_instruction_code
mov al,dl
stos byte [edi]
jmp instruction_assembled
out_imm_al:
mov al,0E6h
stos byte [edi]
mov al,dl
stos byte [edi]
jmp instruction_assembled
call_instruction:
mov [postbyte_register],10b
mov [base_code],0E8h
mov [extended_code],9Ah
jmp process_jmp
jmp_instruction:
mov [postbyte_register],100b
mov [base_code],0E9h
mov [extended_code],0EAh
process_jmp:
lods byte [esi]
call get_jump_operator
call get_size_operator
cmp al,'('
je jmp_imm
mov [base_code],0FFh
cmp al,10h
je jmp_reg
cmp al,'['
jne invalid_operand
jmp_mem:
cmp [jump_type],1
je illegal_instruction
call get_address
mov edx,eax
mov al,[operand_size]
or al,al
jz jmp_mem_size_not_specified
cmp al,2
je jmp_mem_16bit
cmp al,4
je jmp_mem_32bit
cmp al,6
je jmp_mem_48bit
cmp al,8
je jmp_mem_64bit
cmp al,10
je jmp_mem_80bit
jmp invalid_operand_size
jmp_mem_size_not_specified:
cmp [jump_type],3
je jmp_mem_far
cmp [jump_type],2
je jmp_mem_near
cmp [error_line],0
jne jmp_mem_near
mov eax,[current_line]
mov [error_line],eax
mov [error],operand_size_not_specified
jmp_mem_near:
cmp [code_type],16
je jmp_mem_16bit
cmp [code_type],32
je jmp_mem_near_32bit
jmp_mem_64bit:
cmp [jump_type],3
je invalid_operand_size
cmp [code_type],64
jne illegal_instruction
jmp instruction_ready
jmp_mem_far:
cmp [code_type],16
je jmp_mem_far_32bit
jmp_mem_48bit:
call operand_32bit
jmp_mem_far_store:
cmp [jump_type],2
je invalid_operand_size
inc [postbyte_register]
jmp instruction_ready
jmp_mem_80bit:
call operand_64bit
jmp jmp_mem_far_store
jmp_mem_far_32bit:
call operand_16bit
jmp jmp_mem_far_store
jmp_mem_32bit:
cmp [jump_type],3
je jmp_mem_far_32bit
cmp [jump_type],2
je jmp_mem_near_32bit
cmp [code_type],16
je jmp_mem_far_32bit
jmp_mem_near_32bit:
cmp [code_type],64
je illegal_instruction
call operand_32bit
jmp instruction_ready
jmp_mem_16bit:
cmp [jump_type],3
je invalid_operand_size
call operand_16bit
jmp instruction_ready
jmp_reg:
test [jump_type],1
jnz invalid_operand
lods byte [esi]
call convert_register
mov bl,al
mov al,ah
cmp al,2
je jmp_reg_16bit
cmp al,4
je jmp_reg_32bit
cmp al,8
jne invalid_operand_size
jmp_reg_64bit:
cmp [code_type],64
jne illegal_instruction
jmp nomem_instruction_ready
jmp_reg_32bit:
cmp [code_type],64
je illegal_instruction
call operand_32bit
jmp nomem_instruction_ready
jmp_reg_16bit:
call operand_16bit
jmp nomem_instruction_ready
jmp_imm:
cmp byte [esi],'.'
je invalid_value
mov ebx,esi
dec esi
call skip_symbol
xchg esi,ebx
cmp byte [ebx],':'
je jmp_far
cmp [jump_type],3
je invalid_operand
jmp_near:
mov al,[operand_size]
cmp al,2
je jmp_imm_16bit
cmp al,4
je jmp_imm_32bit
cmp al,8
je jmp_imm_64bit
or al,al
jnz invalid_operand_size
cmp [code_type],16
je jmp_imm_16bit
cmp [code_type],64
je jmp_imm_64bit
jmp_imm_32bit:
cmp [code_type],64
je invalid_operand_size
call get_address_dword_value
cmp [code_type],16
jne jmp_imm_32bit_prefix_ok
mov byte [edi],66h
inc edi
jmp_imm_32bit_prefix_ok:
call calculate_jump_offset
cdq
call check_for_short_jump
jc jmp_short
jmp_imm_32bit_store:
mov edx,eax
sub edx,3
mov al,[base_code]
stos byte [edi]
mov eax,edx
call mark_relocation
stos dword [edi]
jmp instruction_assembled
jmp_imm_64bit:
cmp [code_type],64
jne invalid_operand_size
call get_address_qword_value
call calculate_jump_offset
mov ecx,edx
cdq
cmp edx,ecx
jne value_out_of_range
call check_for_short_jump
jnc jmp_imm_32bit_store
jmp_short:
mov ah,al
mov al,0EBh
stos word [edi]
jmp instruction_assembled
jmp_imm_16bit:
call get_address_word_value
cmp [code_type],16
je jmp_imm_16bit_prefix_ok
mov byte [edi],66h
inc edi
jmp_imm_16bit_prefix_ok:
call calculate_jump_offset
cwde
cdq
call check_for_short_jump
jc jmp_short
cmp [value_type],0
jne invalid_use_of_symbol
mov edx,eax
dec edx
mov al,[base_code]
stos byte [edi]
mov eax,edx
stos word [edi]
jmp instruction_assembled
calculate_jump_offset:
add edi,2
call calculate_relative_offset
sub edi,2
ret
check_for_short_jump:
cmp [jump_type],1
je forced_short
ja no_short_jump
cmp [base_code],0E8h
je no_short_jump
cmp [value_type],0
jne no_short_jump
cmp eax,80h
jb short_jump
cmp eax,-80h
jae short_jump
no_short_jump:
clc
ret
forced_short:
cmp [base_code],0E8h
je illegal_instruction
cmp [next_pass_needed],0
jne jmp_short_value_type_ok
cmp [value_type],0
jne invalid_use_of_symbol
jmp_short_value_type_ok:
cmp eax,-80h
jae short_jump
cmp eax,80h
jae jump_out_of_range
short_jump:
stc
ret
jump_out_of_range:
cmp [error_line],0
jne instruction_assembled
mov eax,[current_line]
mov [error_line],eax
mov [error],relative_jump_out_of_range
jmp instruction_assembled
jmp_far:
cmp [jump_type],2
je invalid_operand
cmp [code_type],64
je illegal_instruction
mov al,[extended_code]
mov [base_code],al
call get_word_value
push eax
inc esi
lods byte [esi]
cmp al,'('
jne invalid_operand
mov al,[value_type]
push eax [symbol_identifier]
cmp byte [esi],'.'
je invalid_value
mov al,[operand_size]
cmp al,4
je jmp_far_16bit
cmp al,6
je jmp_far_32bit
or al,al
jnz invalid_operand_size
cmp [code_type],16
jne jmp_far_32bit
jmp_far_16bit:
call get_word_value
mov ebx,eax
call operand_16bit
call store_instruction_code
mov ax,bx
call mark_relocation
stos word [edi]
jmp_far_segment:
pop [symbol_identifier] eax
mov [value_type],al
pop eax
call mark_relocation
stos word [edi]
jmp instruction_assembled
jmp_far_32bit:
call get_dword_value
mov ebx,eax
call operand_32bit
call store_instruction_code
mov eax,ebx
call mark_relocation
stos dword [edi]
jmp jmp_far_segment
conditional_jump:
mov [base_code],al
lods byte [esi]
call get_jump_operator
cmp [jump_type],3
je invalid_operand
call get_size_operator
cmp al,'('
jne invalid_operand
cmp byte [esi],'.'
je invalid_value
mov al,[operand_size]
cmp al,2
je conditional_jump_16bit
cmp al,4
je conditional_jump_32bit
cmp al,8
je conditional_jump_64bit
or al,al
jnz invalid_operand_size
cmp [code_type],16
je conditional_jump_16bit
cmp [code_type],64
je conditional_jump_64bit
conditional_jump_32bit:
cmp [code_type],64
je invalid_operand_size
call get_address_dword_value
cmp [code_type],16
jne conditional_jump_32bit_prefix_ok
mov byte [edi],66h
inc edi
conditional_jump_32bit_prefix_ok:
call calculate_jump_offset
cdq
call check_for_short_jump
jc conditional_jump_short
conditional_jump_32bit_store:
mov edx,eax
sub edx,4
mov ah,[base_code]
add ah,10h
mov al,0Fh
stos word [edi]
mov eax,edx
call mark_relocation
stos dword [edi]
jmp instruction_assembled
conditional_jump_64bit:
cmp [code_type],64
jne invalid_operand_size
call get_address_qword_value
call calculate_jump_offset
mov ecx,edx
cdq
cmp edx,ecx
jne value_out_of_range
call check_for_short_jump
jnc conditional_jump_32bit_store
conditional_jump_short:
mov ah,al
mov al,[base_code]
stos word [edi]
jmp instruction_assembled
conditional_jump_16bit:
call get_address_word_value
cmp [code_type],16
je conditional_jump_16bit_prefix_ok
mov byte [edi],66h
inc edi
conditional_jump_16bit_prefix_ok:
call calculate_jump_offset
cwde
cdq
call check_for_short_jump
jc conditional_jump_short
cmp [value_type],0
jne invalid_use_of_symbol
mov edx,eax
sub edx,2
mov ah,[base_code]
add ah,10h
mov al,0Fh
stos word [edi]
mov eax,edx
stos word [edi]
jmp instruction_assembled
loop_instruction_16bit:
cmp [code_type],64
je illegal_instruction
cmp [code_type],16
je loop_instruction
mov [operand_prefix],67h
jmp loop_instruction
loop_instruction_32bit:
cmp [code_type],32
je loop_instruction
mov [operand_prefix],67h
jmp loop_instruction
loop_instruction_64bit:
cmp [code_type],64
jne illegal_instruction
loop_instruction:
mov [base_code],al
lods byte [esi]
call get_jump_operator
cmp [jump_type],1
ja invalid_operand
call get_size_operator
cmp al,'('
jne invalid_operand
cmp byte [esi],'.'
je invalid_value
mov al,[operand_size]
cmp al,2
je loop_jump_16bit
cmp al,4
je loop_jump_32bit
cmp al,8
je loop_jump_64bit
or al,al
jnz invalid_operand_size
cmp [code_type],16
je loop_jump_16bit
cmp [code_type],64
je loop_jump_64bit
loop_jump_32bit:
cmp [code_type],64
je invalid_operand_size
call get_address_dword_value
cmp [code_type],16
jne loop_jump_32bit_prefix_ok
mov byte [edi],66h
inc edi
loop_jump_32bit_prefix_ok:
call loop_counter_size
call calculate_jump_offset
cdq
make_loop_jump:
call check_for_short_jump
jc conditional_jump_short
jmp jump_out_of_range
loop_counter_size:
cmp [operand_prefix],0
je loop_counter_size_ok
push eax
mov al,[operand_prefix]
stos byte [edi]
pop eax
loop_counter_size_ok:
ret
loop_jump_64bit:
cmp [code_type],64
jne invalid_operand_size
call get_address_qword_value
call loop_counter_size
call calculate_jump_offset
mov ecx,edx
cdq
cmp edx,ecx
jne value_out_of_range
jmp make_loop_jump
loop_jump_16bit:
call get_address_word_value
cmp [code_type],16
je loop_jump_16bit_prefix_ok
mov byte [edi],66h
inc edi
loop_jump_16bit_prefix_ok:
call loop_counter_size
call calculate_jump_offset
cwde
cdq
jmp make_loop_jump
movs_instruction:
lods byte [esi]
call get_size_operator
cmp al,'['
jne invalid_operand
call get_address
or eax,eax
jnz invalid_address
or bl,ch
jnz invalid_address
cmp [segment_register],1
ja invalid_address
push ebx
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,'['
jne invalid_operand
call get_address
pop edx
or eax,eax
jnz invalid_address
or bl,ch
jnz invalid_address
mov al,dh
mov ah,bh
shr al,4
shr ah,4
cmp al,ah
jne address_sizes_do_not_agree
and bh,111b
and dh,111b
cmp bh,6
jne invalid_address
cmp dh,7
jne invalid_address
cmp al,2
je movs_address_16bit
cmp al,4
je movs_address_32bit
cmp [code_type],64
jne invalid_address_size
jmp movs_store
movs_address_32bit:
call address_32bit_prefix
jmp movs_store
movs_address_16bit:
cmp [code_type],64
je invalid_address_size
call address_16bit_prefix
movs_store:
cmp [segment_register],4
je movs_segment_ok
call store_segment_prefix
movs_segment_ok:
mov al,0A4h
movs_check_size:
mov bl,[operand_size]
cmp bl,1
je simple_instruction
inc al
cmp bl,2
je simple_instruction_16bit
cmp bl,4
je simple_instruction_32bit
cmp bl,8
je simple_instruction_64bit
or bl,bl
jnz invalid_operand_size
cmp [error_line],0
jne simple_instruction
mov ebx,[current_line]
mov [error_line],ebx
mov [error],operand_size_not_specified
jmp simple_instruction
lods_instruction:
lods byte [esi]
call get_size_operator
cmp al,'['
jne invalid_operand
call get_address
or eax,eax
jnz invalid_address
or bl,ch
jnz invalid_address
cmp bh,26h
je lods_address_16bit
cmp bh,46h
je lods_address_32bit
cmp bh,86h
jne invalid_address
cmp [code_type],64
jne invalid_address_size
jmp lods_store
lods_address_32bit:
call address_32bit_prefix
jmp lods_store
lods_address_16bit:
cmp [code_type],64
je invalid_address_size
call address_16bit_prefix
lods_store:
cmp [segment_register],4
je lods_segment_ok
call store_segment_prefix
lods_segment_ok:
mov al,0ACh
jmp movs_check_size
stos_instruction:
mov [base_code],al
lods byte [esi]
call get_size_operator
cmp al,'['
jne invalid_operand
call get_address
or eax,eax
jnz invalid_address
or bl,ch
jnz invalid_address
cmp bh,27h
je stos_address_16bit
cmp bh,47h
je stos_address_32bit
cmp bh,87h
jne invalid_address
cmp [code_type],64
jne invalid_address_size
jmp stos_store
stos_address_32bit:
call address_32bit_prefix
jmp stos_store
stos_address_16bit:
cmp [code_type],64
je invalid_address_size
call address_16bit_prefix
stos_store:
cmp [segment_register],1
ja invalid_address
mov al,[base_code]
jmp movs_check_size
cmps_instruction:
lods byte [esi]
call get_size_operator
cmp al,'['
jne invalid_operand
call get_address
or eax,eax
jnz invalid_address
or bl,ch
jnz invalid_address
mov al,[segment_register]
push eax ebx
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,'['
jne invalid_operand
call get_address
or eax,eax
jnz invalid_address
or bl,ch
jnz invalid_address
pop edx eax
cmp [segment_register],1
ja invalid_address
mov [segment_register],al
mov al,dh
mov ah,bh
shr al,4
shr ah,4
cmp al,ah
jne address_sizes_do_not_agree
and bh,111b
and dh,111b
cmp bh,7
jne invalid_address
cmp dh,6
jne invalid_address
cmp al,2
je cmps_address_16bit
cmp al,4
je cmps_address_32bit
cmp [code_type],64
jne invalid_address_size
jmp cmps_store
cmps_address_32bit:
call address_32bit_prefix
jmp cmps_store
cmps_address_16bit:
cmp [code_type],64
je invalid_address_size
call address_16bit_prefix
cmps_store:
cmp [segment_register],4
je cmps_segment_ok
call store_segment_prefix
cmps_segment_ok:
mov al,0A6h
jmp movs_check_size
ins_instruction:
lods byte [esi]
call get_size_operator
cmp al,'['
jne invalid_operand
call get_address
or eax,eax
jnz invalid_address
or bl,ch
jnz invalid_address
cmp bh,27h
je ins_address_16bit
cmp bh,47h
je ins_address_32bit
cmp bh,87h
jne invalid_address
cmp [code_type],64
jne invalid_address_size
jmp ins_store
ins_address_32bit:
call address_32bit_prefix
jmp ins_store
ins_address_16bit:
cmp [code_type],64
je invalid_address_size
call address_16bit_prefix
ins_store:
cmp [segment_register],1
ja invalid_address
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
cmp al,10h
jne invalid_operand
lods byte [esi]
cmp al,22h
jne invalid_operand
mov al,6Ch
ins_check_size:
cmp [operand_size],8
jne movs_check_size
jmp invalid_operand_size
outs_instruction:
lods byte [esi]
cmp al,10h
jne invalid_operand
lods byte [esi]
cmp al,22h
jne invalid_operand
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,'['
jne invalid_operand
call get_address
or eax,eax
jnz invalid_address
or bl,ch
jnz invalid_address
cmp bh,26h
je outs_address_16bit
cmp bh,46h
je outs_address_32bit
cmp bh,86h
jne invalid_address
cmp [code_type],64
jne invalid_address_size
jmp outs_store
outs_address_32bit:
call address_32bit_prefix
jmp outs_store
outs_address_16bit:
cmp [code_type],64
je invalid_address_size
call address_16bit_prefix
outs_store:
cmp [segment_register],4
je outs_segment_ok
call store_segment_prefix
outs_segment_ok:
mov al,6Eh
jmp ins_check_size
xlat_instruction:
lods byte [esi]
call get_size_operator
cmp al,'['
jne invalid_operand
call get_address
or eax,eax
jnz invalid_address
or bl,ch
jnz invalid_address
cmp bh,23h
je xlat_address_16bit
cmp bh,43h
je xlat_address_32bit
cmp bh,83h
jne invalid_address
cmp [code_type],64
jne invalid_address_size
jmp xlat_store
xlat_address_32bit:
call address_32bit_prefix
jmp xlat_store
xlat_address_16bit:
cmp [code_type],64
je invalid_address_size
call address_16bit_prefix
xlat_store:
call store_segment_prefix_if_necessary
mov al,0D7h
cmp [operand_size],1
jbe simple_instruction
jmp invalid_operand_size
pm_word_instruction:
mov ah,al
shr ah,4
and al,111b
mov [base_code],0Fh
mov [extended_code],ah
mov [postbyte_register],al
lods byte [esi]
call get_size_operator
cmp al,10h
je pm_reg
pm_mem:
cmp al,'['
jne invalid_operand
call get_address
mov al,[operand_size]
cmp al,2
je pm_mem_store
or al,al
jnz invalid_operand_size
pm_mem_store:
jmp instruction_ready
pm_reg:
lods byte [esi]
call convert_register
mov bl,al
cmp ah,2
jne invalid_operand_size
jmp nomem_instruction_ready
pm_store_word_instruction:
mov ah,al
shr ah,4
and al,111b
mov [base_code],0Fh
mov [extended_code],ah
mov [postbyte_register],al
lods byte [esi]
call get_size_operator
cmp al,10h
jne pm_mem
lods byte [esi]
call convert_register
mov bl,al
mov al,ah
call operand_autodetect
jmp nomem_instruction_ready
lgdt_instruction:
mov [base_code],0Fh
mov [extended_code],1
mov [postbyte_register],al
lods byte [esi]
call get_size_operator
cmp al,'['
jne invalid_operand
call get_address
mov al,[operand_size]
cmp al,6
je lgdt_mem_48bit
cmp al,10
je lgdt_mem_80bit
or al,al
jnz invalid_operand_size
jmp lgdt_mem_store
lgdt_mem_80bit:
cmp [code_type],64
jne illegal_instruction
jmp lgdt_mem_store
lgdt_mem_48bit:
cmp [code_type],64
je illegal_instruction
cmp [postbyte_register],2
jb lgdt_mem_store
call operand_32bit
lgdt_mem_store:
jmp instruction_ready
lar_instruction:
mov [extended_code],al
mov [base_code],0Fh
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
mov [postbyte_register],al
lods byte [esi]
cmp al,','
jne invalid_operand
xor al,al
xchg al,[operand_size]
call operand_autodetect
lods byte [esi]
call get_size_operator
cmp al,10h
je lar_reg_reg
cmp al,'['
jne invalid_operand
call get_address
mov al,[operand_size]
or al,al
jz lar_reg_mem
cmp al,2
jne invalid_operand_size
lar_reg_mem:
jmp instruction_ready
lar_reg_reg:
lods byte [esi]
call convert_register
cmp ah,2
jne invalid_operand_size
mov bl,al
jmp nomem_instruction_ready
invlpg_instruction:
mov [base_code],0Fh
mov [extended_code],1
mov [postbyte_register],7
lods byte [esi]
call get_size_operator
cmp al,'['
jne invalid_operand
call get_address
jmp instruction_ready
swapgs_instruction:
mov [base_code],0Fh
mov [extended_code],1
mov [postbyte_register],7
mov bl,al
jmp nomem_instruction_ready
basic_486_instruction:
mov [base_code],0Fh
mov [extended_code],al
lods byte [esi]
call get_size_operator
cmp al,10h
je basic_486_reg
cmp al,'['
jne invalid_operand
call get_address
push edx ebx ecx
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
mov [postbyte_register],al
pop ecx ebx edx
mov al,ah
cmp al,1
je basic_486_mem_reg_8bit
call operand_autodetect
inc [extended_code]
basic_486_mem_reg_8bit:
jmp instruction_ready
basic_486_reg:
lods byte [esi]
call convert_register
mov [postbyte_register],al
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
mov bl,[postbyte_register]
mov [postbyte_register],al
mov al,ah
cmp al,1
je basic_486_reg_reg_8bit
call operand_autodetect
inc [extended_code]
basic_486_reg_reg_8bit:
jmp nomem_instruction_ready
bswap_instruction:
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
test al,1000b
jz bswap_reg_code_ok
or [rex_prefix],41h
and al,111b
bswap_reg_code_ok:
add al,0C8h
mov [extended_code],al
mov [base_code],0Fh
cmp ah,8
je bswap_reg64
cmp ah,4
jne invalid_operand_size
call operand_32bit
call store_instruction_code
jmp instruction_assembled
bswap_reg64:
call operand_64bit
call store_instruction_code
jmp instruction_assembled
cmpxchgx_instruction:
mov [base_code],0Fh
mov [extended_code],0C7h
mov [postbyte_register],al
lods byte [esi]
call get_size_operator
cmp al,'['
jne invalid_operand
call get_address
mov ah,1
xchg [postbyte_register],ah
mov al,[operand_size]
or al,al
jz cmpxchgx_size_ok
cmp al,ah
jne invalid_operand_size
cmpxchgx_size_ok:
cmp ah,16
jne cmpxchgx_store
call operand_64bit
cmpxchgx_store:
jmp instruction_ready
nop_instruction:
mov ah,[esi]
cmp ah,10h
je extended_nop
cmp ah,11h
je extended_nop
cmp ah,'['
je extended_nop
stos byte [edi]
jmp instruction_assembled
extended_nop:
mov [base_code],0Fh
mov [extended_code],1Fh
mov [postbyte_register],0
lods byte [esi]
call get_size_operator
cmp al,10h
je extended_nop_reg
cmp al,'['
jne invalid_operand
call get_address
mov al,[operand_size]
or al,al
jz extended_nop_store
call operand_autodetect
extended_nop_store:
jmp instruction_ready
extended_nop_reg:
lods byte [esi]
call convert_register
mov bl,al
mov al,ah
call operand_autodetect
jmp nomem_instruction_ready
basic_fpu_instruction:
mov [postbyte_register],al
mov [base_code],0D8h
lods byte [esi]
call get_size_operator
cmp al,10h
je basic_fpu_streg
cmp al,'['
je basic_fpu_mem
dec esi
mov ah,[postbyte_register]
cmp ah,2
jb invalid_operand
cmp ah,3
ja invalid_operand
mov bl,1
jmp nomem_instruction_ready
basic_fpu_mem:
call get_address
mov al,[operand_size]
cmp al,4
je basic_fpu_mem_32bit
cmp al,8
je basic_fpu_mem_64bit
or al,al
jnz invalid_operand_size
cmp [error_line],0
jne basic_fpu_mem_32bit
mov eax,[current_line]
mov [error_line],eax
mov [error],operand_size_not_specified
basic_fpu_mem_32bit:
jmp instruction_ready
basic_fpu_mem_64bit:
mov [base_code],0DCh
jmp instruction_ready
basic_fpu_streg:
lods byte [esi]
call convert_fpu_register
mov bl,al
mov ah,[postbyte_register]
cmp ah,2
je basic_fpu_single_streg
cmp ah,3
je basic_fpu_single_streg
or al,al
jz basic_fpu_st0
test ah,110b
jz basic_fpu_streg_st0
xor [postbyte_register],1
basic_fpu_streg_st0:
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_fpu_register
or al,al
jnz invalid_operand
mov [base_code],0DCh
jmp nomem_instruction_ready
basic_fpu_st0:
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_fpu_register
mov bl,al
basic_fpu_single_streg:
mov [base_code],0D8h
jmp nomem_instruction_ready
simple_fpu_instruction:
mov ah,al
or ah,11000000b
mov al,0D9h
stos word [edi]
jmp instruction_assembled
fi_instruction:
mov [postbyte_register],al
lods byte [esi]
call get_size_operator
cmp al,'['
jne invalid_operand
call get_address
mov al,[operand_size]
cmp al,2
je fi_mem_16bit
cmp al,4
je fi_mem_32bit
or al,al
jnz invalid_operand_size
cmp [error_line],0
jne fi_mem_32bit
mov eax,[current_line]
mov [error_line],eax
mov [error],operand_size_not_specified
fi_mem_32bit:
mov [base_code],0DAh
jmp instruction_ready
fi_mem_16bit:
mov [base_code],0DEh
jmp instruction_ready
fld_instruction:
mov [postbyte_register],al
lods byte [esi]
call get_size_operator
cmp al,10h
je fld_streg
cmp al,'['
jne invalid_operand
call get_address
mov al,[operand_size]
cmp al,4
je fld_mem_32bit
cmp al,8
je fld_mem_64bit
cmp al,10
je fld_mem_80bit
or al,al
jnz invalid_operand_size
cmp [error_line],0
jne fld_mem_32bit
mov eax,[current_line]
mov [error_line],eax
mov [error],operand_size_not_specified
fld_mem_32bit:
mov [base_code],0D9h
jmp instruction_ready
fld_mem_64bit:
mov [base_code],0DDh
jmp instruction_ready
fld_mem_80bit:
mov al,[postbyte_register]
cmp al,0
je fld_mem_80bit_store
dec [postbyte_register]
cmp al,3
je fld_mem_80bit_store
jmp invalid_operand_size
fld_mem_80bit_store:
add [postbyte_register],5
mov [base_code],0DBh
jmp instruction_ready
fld_streg:
lods byte [esi]
call convert_fpu_register
mov bl,al
cmp [postbyte_register],2
jae fst_streg
mov [base_code],0D9h
jmp nomem_instruction_ready
fst_streg:
mov [base_code],0DDh
jmp nomem_instruction_ready
fild_instruction:
mov [postbyte_register],al
lods byte [esi]
call get_size_operator
cmp al,'['
jne invalid_operand
call get_address
mov al,[operand_size]
cmp al,2
je fild_mem_16bit
cmp al,4
je fild_mem_32bit
cmp al,8
je fild_mem_64bit
or al,al
jnz invalid_operand_size
cmp [error_line],0
jne fild_mem_32bit
mov eax,[current_line]
mov [error_line],eax
mov [error],operand_size_not_specified
fild_mem_32bit:
mov [base_code],0DBh
jmp instruction_ready
fild_mem_16bit:
mov [base_code],0DFh
jmp instruction_ready
fild_mem_64bit:
mov al,[postbyte_register]
cmp al,1
je fisttp_64bit_store
jb fild_mem_64bit_store
dec [postbyte_register]
cmp al,3
je fild_mem_64bit_store
jmp invalid_operand_size
fild_mem_64bit_store:
add [postbyte_register],5
mov [base_code],0DFh
jmp instruction_ready
fisttp_64bit_store:
mov [base_code],0DDh
jmp instruction_ready
fbld_instruction:
mov [postbyte_register],al
lods byte [esi]
call get_size_operator
cmp al,'['
jne invalid_operand
call get_address
mov al,[operand_size]
or al,al
jz fbld_mem_80bit
cmp al,10
je fbld_mem_80bit
jmp invalid_operand_size
fbld_mem_80bit:
mov [base_code],0DFh
jmp instruction_ready
faddp_instruction:
mov [postbyte_register],al
mov [base_code],0DEh
mov edx,esi
lods byte [esi]
call get_size_operator
cmp al,10h
je faddp_streg
mov esi,edx
mov bl,1
jmp nomem_instruction_ready
faddp_streg:
lods byte [esi]
call convert_fpu_register
mov bl,al
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_fpu_register
or al,al
jnz invalid_operand
jmp nomem_instruction_ready
fcompp_instruction:
mov ax,0D9DEh
stos word [edi]
jmp instruction_assembled
fucompp_instruction:
mov ax,0E9DAh
stos word [edi]
jmp instruction_assembled
fxch_instruction:
mov dx,01D9h
jmp fpu_single_operand
ffreep_instruction:
mov dx,00DFh
jmp fpu_single_operand
ffree_instruction:
mov dl,0DDh
mov dh,al
fpu_single_operand:
mov ebx,esi
lods byte [esi]
call get_size_operator
cmp al,10h
je fpu_streg
or dh,dh
jz invalid_operand
mov esi,ebx
shl dh,3
or dh,11000001b
mov ax,dx
stos word [edi]
jmp instruction_assembled
fpu_streg:
lods byte [esi]
call convert_fpu_register
shl dh,3
or dh,al
or dh,11000000b
mov ax,dx
stos word [edi]
jmp instruction_assembled
fstenv_instruction:
mov byte [edi],9Bh
inc edi
fldenv_instruction:
mov [base_code],0D9h
jmp fpu_mem
fstenv_instruction_16bit:
mov byte [edi],9Bh
inc edi
fldenv_instruction_16bit:
call operand_16bit
jmp fldenv_instruction
fstenv_instruction_32bit:
mov byte [edi],9Bh
inc edi
fldenv_instruction_32bit:
call operand_32bit
jmp fldenv_instruction
fsave_instruction_32bit:
mov byte [edi],9Bh
inc edi
fnsave_instruction_32bit:
call operand_32bit
jmp fnsave_instruction
fsave_instruction_16bit:
mov byte [edi],9Bh
inc edi
fnsave_instruction_16bit:
call operand_16bit
jmp fnsave_instruction
fsave_instruction:
mov byte [edi],9Bh
inc edi
fnsave_instruction:
mov [base_code],0DDh
fpu_mem:
mov [postbyte_register],al
lods byte [esi]
call get_size_operator
cmp al,'['
jne invalid_operand
call get_address
cmp [operand_size],0
jne invalid_operand_size
jmp instruction_ready
fstcw_instruction:
mov byte [edi],9Bh
inc edi
fldcw_instruction:
mov [postbyte_register],al
mov [base_code],0D9h
lods byte [esi]
call get_size_operator
cmp al,'['
jne invalid_operand
call get_address
mov al,[operand_size]
or al,al
jz fldcw_mem_16bit
cmp al,2
je fldcw_mem_16bit
jmp invalid_operand_size
fldcw_mem_16bit:
jmp instruction_ready
fstsw_instruction:
mov al,9Bh
stos byte [edi]
fnstsw_instruction:
mov [base_code],0DDh
mov [postbyte_register],7
lods byte [esi]
call get_size_operator
cmp al,10h
je fstsw_reg
cmp al,'['
jne invalid_operand
call get_address
mov al,[operand_size]
or al,al
jz fstsw_mem_16bit
cmp al,2
je fstsw_mem_16bit
jmp invalid_operand_size
fstsw_mem_16bit:
jmp instruction_ready
fstsw_reg:
lods byte [esi]
call convert_register
cmp ax,0200h
jne invalid_operand
mov ax,0E0DFh
stos word [edi]
jmp instruction_assembled
finit_instruction:
mov byte [edi],9Bh
inc edi
fninit_instruction:
mov ah,al
mov al,0DBh
stos word [edi]
jmp instruction_assembled
fcmov_instruction:
mov dh,0DAh
jmp fcomi_streg
fcomi_instruction:
mov dh,0DBh
jmp fcomi_streg
fcomip_instruction:
mov dh,0DFh
fcomi_streg:
mov dl,al
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_fpu_register
mov ah,al
cmp byte [esi],','
je fcomi_st0_streg
add ah,dl
mov al,dh
stos word [edi]
jmp instruction_assembled
fcomi_st0_streg:
or ah,ah
jnz invalid_operand
inc esi
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_fpu_register
mov ah,al
add ah,dl
mov al,dh
stos word [edi]
jmp instruction_assembled
basic_mmx_instruction:
mov [base_code],0Fh
mov [extended_code],al
mmx_instruction:
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
call make_mmx_prefix
mov [postbyte_register],al
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
je mmx_mmreg_mmreg
cmp al,'['
jne invalid_operand
mmx_mmreg_mem:
call get_address
jmp instruction_ready
mmx_mmreg_mmreg:
lods byte [esi]
call convert_mmx_register
mov bl,al
jmp nomem_instruction_ready
mmx_ps_instruction:
mov [base_code],0Fh
mov [extended_code],al
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
call make_mmx_prefix
mov [postbyte_register],al
lods byte [esi]
cmp al,','
jne invalid_operand
mov [operand_size],0
lods byte [esi]
call get_size_operator
cmp al,10h
je mmx_mmreg_mmreg
cmp al,'('
je mmx_ps_mmreg_imm8
cmp al,'['
je mmx_mmreg_mem
jmp invalid_operand
mmx_ps_mmreg_imm8:
call get_byte_value
mov byte [value],al
test [operand_size],not 1
jnz invalid_value
mov bl,[extended_code]
mov al,bl
shr bl,4
and al,1111b
add al,70h
mov [extended_code],al
sub bl,0Ch
shl bl,1
xchg bl,[postbyte_register]
call store_nomem_instruction
mov al,byte [value]
stos byte [edi]
jmp instruction_assembled
pmovmskb_instruction:
mov [base_code],0Fh
mov [extended_code],al
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
cmp ah,4
je pmovmskb_reg_size_ok
cmp [code_type],64
jne invalid_operand_size
cmp ah,8
jnz invalid_operand_size
pmovmskb_reg_size_ok:
mov [postbyte_register],al
mov [operand_size],0
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
mov bl,al
call make_mmx_prefix
cmp [extended_code],0C5h
je mmx_nomem_imm8
jmp nomem_instruction_ready
mmx_imm8:
push ebx ecx edx
mov [operand_size],0
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
test ah,not 1
jnz invalid_operand_size
cmp al,'('
jne invalid_operand
call get_byte_value
mov byte [value],al
pop edx ecx ebx
call store_instruction_with_imm8
jmp instruction_assembled
mmx_nomem_imm8:
call store_nomem_instruction
call append_imm8
jmp instruction_assembled
append_imm8:
mov [operand_size],0
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
test ah,not 1
jnz invalid_operand_size
cmp al,'('
jne invalid_operand
call get_byte_value
stosb
ret
pinsrw_instruction:
mov [extended_code],al
mov [base_code],0Fh
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
call make_mmx_prefix
mov [postbyte_register],al
mov [operand_size],0
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
je pinsrw_mmreg_reg
cmp al,'['
jne invalid_operand
call get_address
cmp [operand_size],0
je mmx_imm8
cmp [operand_size],2
jne invalid_operand_size
jmp mmx_imm8
pinsrw_mmreg_reg:
lods byte [esi]
call convert_register
cmp ah,4
jne invalid_operand_size
mov bl,al
jmp mmx_nomem_imm8
pshufw_instruction:
mov [mmx_size],8
mov [opcode_prefix],al
jmp pshuf_instruction
pshufd_instruction:
mov [mmx_size],16
mov [opcode_prefix],al
pshuf_instruction:
mov [base_code],0Fh
mov [extended_code],70h
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
cmp ah,[mmx_size]
jne invalid_operand_size
mov [postbyte_register],al
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
je pshuf_mmreg_mmreg
cmp al,'['
jne invalid_operand
call get_address
jmp mmx_imm8
pshuf_mmreg_mmreg:
lods byte [esi]
call convert_mmx_register
mov bl,al
jmp mmx_nomem_imm8
movd_instruction:
mov [base_code],0Fh
mov [extended_code],7Eh
lods byte [esi]
call get_size_operator
cmp al,10h
je movd_reg
cmp al,'['
jne invalid_operand
call get_address
test [operand_size],not 4
jnz invalid_operand_size
mov [operand_size],0
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
call make_mmx_prefix
mov [postbyte_register],al
jmp instruction_ready
movd_reg:
lods byte [esi]
cmp al,0B0h
jae movd_mmreg
call convert_register
cmp ah,4
jne invalid_operand_size
mov [operand_size],0
mov bl,al
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
mov [postbyte_register],al
call make_mmx_prefix
jmp nomem_instruction_ready
movd_mmreg:
mov [extended_code],6Eh
call convert_mmx_register
call make_mmx_prefix
mov [postbyte_register],al
mov [operand_size],0
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
je movd_mmreg_reg
cmp al,'['
jne invalid_operand
call get_address
test [operand_size],not 4
jnz invalid_operand_size
jmp instruction_ready
movd_mmreg_reg:
lods byte [esi]
call convert_register
cmp ah,4
jne invalid_operand_size
mov bl,al
jmp nomem_instruction_ready
make_mmx_prefix:
cmp [operand_size],16
jne no_mmx_prefix
mov [operand_prefix],66h
no_mmx_prefix:
ret
movq_instruction:
mov [base_code],0Fh
lods byte [esi]
call get_size_operator
cmp al,10h
je movq_reg
cmp al,'['
jne invalid_operand
call get_address
test [operand_size],not 8
jnz invalid_operand_size
mov [operand_size],0
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
mov [postbyte_register],al
cmp ah,16
je movq_mem_xmmreg
mov [extended_code],7Fh
jmp instruction_ready
movq_mem_xmmreg:
mov [extended_code],0D6h
mov [opcode_prefix],66h
jmp instruction_ready
movq_reg:
lods byte [esi]
cmp al,0B0h
jae movq_mmreg
call convert_register
cmp ah,8
jne invalid_operand_size
mov bl,al
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
mov [operand_size],0
lods byte [esi]
call convert_mmx_register
mov [postbyte_register],al
call make_mmx_prefix
mov [extended_code],7Eh
call operand_64bit
jmp nomem_instruction_ready
movq_mmreg:
call convert_mmx_register
mov [postbyte_register],al
mov [extended_code],6Fh
mov [mmx_size],ah
cmp ah,16
jne movq_mmreg_
mov [extended_code],7Eh
mov [opcode_prefix],0F3h
movq_mmreg_:
lods byte [esi]
cmp al,','
jne invalid_operand
mov [operand_size],0
lods byte [esi]
call get_size_operator
cmp al,10h
je movq_mmreg_reg
call get_address
test [operand_size],not 8
jnz invalid_operand_size
jmp instruction_ready
movq_mmreg_reg:
lods byte [esi]
cmp al,0B0h
jae movq_mmreg_mmreg
mov [operand_size],0
call convert_register
cmp ah,8
jne invalid_operand_size
mov [extended_code],6Eh
mov [opcode_prefix],0
mov bl,al
cmp [mmx_size],16
jne movq_mmreg_reg_store
mov [opcode_prefix],66h
movq_mmreg_reg_store:
call operand_64bit
jmp nomem_instruction_ready
movq_mmreg_mmreg:
call convert_mmx_register
cmp ah,[mmx_size]
jne invalid_operand_size
mov bl,al
jmp nomem_instruction_ready
movdq_instruction:
mov [opcode_prefix],al
mov [base_code],0Fh
mov [extended_code],6Fh
lods byte [esi]
call get_size_operator
cmp al,10h
je movdq_mmreg
cmp al,'['
jne invalid_operand
call get_address
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
mov [postbyte_register],al
mov [extended_code],7Fh
jmp instruction_ready
movdq_mmreg:
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
mov [postbyte_register],al
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
je movdq_mmreg_mmreg
cmp al,'['
jne invalid_operand
call get_address
jmp instruction_ready
movdq_mmreg_mmreg:
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
mov bl,al
jmp nomem_instruction_ready
lddqu_instruction:
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
push eax
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,'['
jne invalid_operand
call get_address
pop eax
mov [postbyte_register],al
mov [opcode_prefix],0F2h
mov [base_code],0Fh
mov [extended_code],0F0h
jmp instruction_ready
movq2dq_instruction:
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
mov [postbyte_register],al
mov [operand_size],0
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
cmp ah,8
jne invalid_operand_size
mov bl,al
mov [opcode_prefix],0F3h
mov [base_code],0Fh
mov [extended_code],0D6h
jmp nomem_instruction_ready
movdq2q_instruction:
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
cmp ah,8
jne invalid_operand_size
mov [postbyte_register],al
mov [operand_size],0
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
mov bl,al
mov [opcode_prefix],0F2h
mov [base_code],0Fh
mov [extended_code],0D6h
jmp nomem_instruction_ready
sse_ps_instruction_imm8:
mov [immediate_size],1
sse_ps_instruction:
mov [mmx_size],16
jmp sse_instruction
sse_pd_instruction_imm8:
mov [immediate_size],1
sse_pd_instruction:
mov [mmx_size],16
mov [opcode_prefix],66h
jmp sse_instruction
sse_ss_instruction:
mov [mmx_size],4
mov [opcode_prefix],0F3h
jmp sse_instruction
sse_sd_instruction:
mov [mmx_size],8
mov [opcode_prefix],0F2h
jmp sse_instruction
comiss_instruction:
mov [mmx_size],4
jmp sse_instruction
comisd_instruction:
mov [mmx_size],8
mov [opcode_prefix],66h
jmp sse_instruction
cvtps2pd_instruction:
mov [mmx_size],8
jmp sse_instruction
cvtpd2dq_instruction:
mov [mmx_size],16
mov [opcode_prefix],0F2h
jmp sse_instruction
cvtdq2pd_instruction:
mov [mmx_size],16
mov [opcode_prefix],0F3h
sse_instruction:
mov [base_code],0Fh
mov [extended_code],al
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
sse_xmmreg:
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
sse_reg:
mov [postbyte_register],al
mov [operand_size],0
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
je sse_xmmreg_xmmreg
sse_reg_mem:
cmp al,'['
jne invalid_operand
call get_address
cmp [operand_size],0
je sse_mem_size_ok
mov al,[mmx_size]
cmp [operand_size],al
jne invalid_operand_size
sse_mem_size_ok:
cmp [immediate_size],1
je mmx_imm8
cmp [immediate_size],-1
jne sse_ok
call take_additional_xmm0
mov [immediate_size],0
sse_ok:
jmp instruction_ready
sse_xmmreg_xmmreg:
cmp [operand_prefix],66h
jne sse_xmmreg_xmmreg_ok
cmp [extended_code],12h
je invalid_operand
cmp [extended_code],16h
je invalid_operand
sse_xmmreg_xmmreg_ok:
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
mov bl,al
cmp [immediate_size],1
je mmx_nomem_imm8
cmp [immediate_size],-1
jne sse_nomem_ok
call take_additional_xmm0
mov [immediate_size],0
sse_nomem_ok:
jmp nomem_instruction_ready
take_additional_xmm0:
cmp byte [esi],','
jne additional_xmm0_ok
inc esi
lods byte [esi]
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
test al,al
jnz invalid_operand
additional_xmm0_ok:
ret
ps_dq_instruction:
mov [postbyte_register],al
mov [opcode_prefix],66h
mov [base_code],0Fh
mov [extended_code],73h
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
mov bl,al
jmp mmx_nomem_imm8
movpd_instruction:
mov [opcode_prefix],66h
movps_instruction:
mov [base_code],0Fh
mov [extended_code],al
mov [mmx_size],16
jmp sse_mov_instruction
movss_instruction:
mov [mmx_size],4
mov [opcode_prefix],0F3h
jmp sse_movs
movsd_instruction:
mov al,0A5h
mov ah,[esi]
or ah,ah
jz simple_instruction_32bit
cmp ah,0Fh
je simple_instruction_32bit
mov [mmx_size],8
mov [opcode_prefix],0F2h
sse_movs:
mov [base_code],0Fh
mov [extended_code],10h
jmp sse_mov_instruction
sse_mov_instruction:
lods byte [esi]
call get_size_operator
cmp al,10h
je sse_xmmreg
sse_mem:
cmp al,'['
jne invalid_operand
inc [extended_code]
call get_address
cmp [operand_size],0
je sse_mem_xmmreg
mov al,[mmx_size]
cmp [operand_size],al
jne invalid_operand_size
mov [operand_size],0
sse_mem_xmmreg:
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
mov [postbyte_register],al
jmp instruction_ready
movlpd_instruction:
mov [opcode_prefix],66h
movlps_instruction:
mov [base_code],0Fh
mov [extended_code],al
mov [mmx_size],8
lods byte [esi]
call get_size_operator
cmp al,10h
jne sse_mem
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
mov [postbyte_register],al
mov [operand_size],0
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
jmp sse_reg_mem
movhlps_instruction:
mov [base_code],0Fh
mov [extended_code],al
mov [mmx_size],0
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
mov [postbyte_register],al
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
je sse_xmmreg_xmmreg_ok
jmp invalid_operand
maskmovq_instruction:
mov cl,8
jmp maskmov_instruction
maskmovdqu_instruction:
mov cl,16
mov [opcode_prefix],66h
maskmov_instruction:
mov [base_code],0Fh
mov [extended_code],0F7h
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
cmp ah,cl
jne invalid_operand_size
mov [postbyte_register],al
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
mov bl,al
jmp nomem_instruction_ready
movmskpd_instruction:
mov [opcode_prefix],66h
movmskps_instruction:
mov [base_code],0Fh
mov [extended_code],50h
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
cmp ah,4
jne invalid_operand_size
mov [operand_size],0
mov [postbyte_register],al
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
mov bl,al
jmp nomem_instruction_ready
cmppd_instruction:
mov [opcode_prefix],66h
cmpps_instruction:
mov [base_code],0Fh
mov [extended_code],0C2h
mov [mmx_size],16
mov byte [value],-1
jmp sse_cmp_instruction
cmp_pd_instruction:
mov [opcode_prefix],66h
cmp_ps_instruction:
mov [base_code],0Fh
mov [extended_code],0C2h
mov [mmx_size],16
mov byte [value],al
jmp sse_cmp_instruction
cmpss_instruction:
mov [mmx_size],4
mov [opcode_prefix],0F3h
jmp cmpsx_instruction
cmpsd_instruction:
mov al,0A7h
mov ah,[esi]
or ah,ah
jz simple_instruction_32bit
cmp ah,0Fh
je simple_instruction_32bit
mov [mmx_size],8
mov [opcode_prefix],0F2h
cmpsx_instruction:
mov [base_code],0Fh
mov [extended_code],0C2h
mov byte [value],-1
jmp sse_cmp_instruction
cmp_ss_instruction:
mov [mmx_size],4
mov [opcode_prefix],0F3h
jmp cmp_sx_instruction
cmp_sd_instruction:
mov [mmx_size],8
mov [opcode_prefix],0F2h
cmp_sx_instruction:
mov [base_code],0Fh
mov [extended_code],0C2h
mov byte [value],al
sse_cmp_instruction:
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
mov [postbyte_register],al
lods byte [esi]
cmp al,','
jne invalid_operand
mov [operand_size],0
lods byte [esi]
call get_size_operator
cmp al,10h
je sse_cmp_xmmreg_xmmreg
cmp al,'['
jne invalid_operand
call get_address
mov al,[operand_size]
or al,al
jz sse_cmp_size_ok
cmp al,[mmx_size]
jne invalid_operand_size
sse_cmp_size_ok:
push ebx ecx edx
call get_nextbyte
pop edx ecx ebx
call store_instruction_with_imm8
jmp instruction_assembled
sse_cmp_xmmreg_xmmreg:
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
mov bl,al
call store_nomem_instruction
call get_nextbyte
mov al,byte [value]
stos byte [edi]
jmp instruction_assembled
get_nextbyte:
cmp byte [value],-1
jne nextbyte_ok
mov [operand_size],0
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
test [operand_size],not 1
jnz invalid_value
cmp al,'('
jne invalid_operand
call get_byte_value
cmp al,7
ja invalid_value
mov byte [value],al
nextbyte_ok:
ret
cvtpi2pd_instruction:
mov [opcode_prefix],66h
cvtpi2ps_instruction:
mov [base_code],0Fh
mov [extended_code],al
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
mov [postbyte_register],al
mov [operand_size],0
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
je cvtpi_xmmreg_xmmreg
cmp al,'['
jne invalid_operand
call get_address
cmp [operand_size],0
je cvtpi_size_ok
cmp [operand_size],8
jne invalid_operand_size
cvtpi_size_ok:
jmp instruction_ready
cvtpi_xmmreg_xmmreg:
lods byte [esi]
call convert_mmx_register
cmp ah,8
jne invalid_operand_size
mov bl,al
jmp nomem_instruction_ready
cvtsi2ss_instruction:
mov [opcode_prefix],0F3h
jmp cvtsi_instruction
cvtsi2sd_instruction:
mov [opcode_prefix],0F2h
cvtsi_instruction:
mov [base_code],0Fh
mov [extended_code],al
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
mov [postbyte_register],al
mov [operand_size],0
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
je cvtsi_xmmreg_reg
cmp al,'['
jne invalid_operand
call get_address
cmp [operand_size],0
je cvtsi_size_ok
cmp [operand_size],4
jne invalid_operand_size
cvtsi_size_ok:
jmp instruction_ready
cvtsi_xmmreg_reg:
lods byte [esi]
call convert_register
cmp ah,4
je cvtsi_xmmreg_reg_store
cmp ah,8
jne invalid_operand_size
call operand_64bit
cvtsi_xmmreg_reg_store:
mov bl,al
jmp nomem_instruction_ready
cvtps2pi_instruction:
mov [mmx_size],8
jmp cvtpd_instruction
cvtpd2pi_instruction:
mov [opcode_prefix],66h
mov [mmx_size],16
cvtpd_instruction:
mov [base_code],0Fh
mov [extended_code],al
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
cmp ah,8
jne invalid_operand_size
mov [operand_size],0
jmp sse_reg
cvtss2si_instruction:
mov [opcode_prefix],0F3h
mov [mmx_size],4
jmp cvt2si_instruction
cvtsd2si_instruction:
mov [opcode_prefix],0F2h
mov [mmx_size],8
cvt2si_instruction:
mov [extended_code],al
mov [base_code],0Fh
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
mov [operand_size],0
cmp ah,4
je sse_reg
cmp ah,8
jne invalid_operand_size
call operand_64bit
jmp sse_reg
ssse3_instruction:
mov [base_code],0Fh
mov [extended_code],38h
mov [supplemental_code],al
jmp mmx_instruction
palignr_instruction:
mov [base_code],0Fh
mov [extended_code],3Ah
mov [supplemental_code],0Fh
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
call make_mmx_prefix
mov [postbyte_register],al
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
je palignr_mmreg_mmreg
cmp al,'['
jne invalid_operand
call get_address
jmp mmx_imm8
palignr_mmreg_mmreg:
lods byte [esi]
call convert_mmx_register
mov bl,al
jmp mmx_nomem_imm8
amd3dnow_instruction:
mov [base_code],0Fh
mov [extended_code],0Fh
mov byte [value],al
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
cmp ah,8
jne invalid_operand_size
mov [postbyte_register],al
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
je amd3dnow_mmreg_mmreg
cmp al,'['
jne invalid_operand
call get_address
call store_instruction_with_imm8
jmp instruction_assembled
amd3dnow_mmreg_mmreg:
lods byte [esi]
call convert_mmx_register
cmp ah,8
jne invalid_operand_size
mov bl,al
call store_nomem_instruction
mov al,byte [value]
stos byte [edi]
jmp instruction_assembled
sse4_instruction_38_xmm0:
mov [immediate_size],-1
jmp sse4_instruction_38
sse4_instruction_38_imm8:
mov [immediate_size],1
sse4_instruction_38:
mov [mmx_size],16
mov [opcode_prefix],66h
mov [base_code],0Fh
mov [supplemental_code],al
mov al,38h
jmp sse_instruction
sse4_ss_instruction_3a_imm8:
mov [immediate_size],1
mov [mmx_size],4
jmp sse4_instruction_3a_setup
sse4_sd_instruction_3a_imm8:
mov [immediate_size],1
mov [mmx_size],8
jmp sse4_instruction_3a_setup
sse4_instruction_3a_imm8:
mov [immediate_size],1
sse4_instruction_3a:
mov [mmx_size],16
sse4_instruction_3a_setup:
mov [opcode_prefix],66h
mov [base_code],0Fh
mov [supplemental_code],al
mov al,3Ah
jmp sse_instruction
extractps_instruction:
mov [opcode_prefix],66h
mov [base_code],0Fh
mov [extended_code],3Ah
mov [supplemental_code],17h
lods byte [esi]
call get_size_operator
cmp al,10h
je extractps_reg
cmp al,'['
jne invalid_operand
call get_address
cmp [operand_size],4
je extractps_size_ok
cmp [operand_size],0
jne invalid_operand_size
extractps_size_ok:
push edx ebx ecx
mov [operand_size],0
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
mov [postbyte_register],al
pop ecx ebx edx
jmp mmx_imm8
extractps_reg:
lods byte [esi]
call convert_register
push eax
mov [operand_size],0
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
mov [postbyte_register],al
pop ebx
mov al,bh
cmp al,4
je mmx_nomem_imm8
cmp al,8
jne invalid_operand_size
call operand_64bit
jmp mmx_nomem_imm8
insertps_instruction:
mov [opcode_prefix],66h
mov [base_code],0Fh
mov [extended_code],3Ah
mov [supplemental_code],21h
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
mov [postbyte_register],al
mov [operand_size],0
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
je insertps_reg
cmp al,'['
jne invalid_operand
call get_address
cmp [operand_size],4
je insertps_size_ok
cmp [operand_size],0
jne invalid_operand_size
insertps_size_ok:
jmp mmx_imm8
insertps_reg:
lods byte [esi]
call convert_mmx_register
mov bl,al
jmp mmx_nomem_imm8
pextrq_instruction:
mov [mmx_size],8
jmp pextr_instruction
pextrd_instruction:
mov [mmx_size],4
jmp pextr_instruction
pextrw_instruction:
mov [mmx_size],2
jmp pextr_instruction
pextrb_instruction:
mov [mmx_size],1
pextr_instruction:
mov [opcode_prefix],66h
mov [base_code],0Fh
mov [extended_code],3Ah
mov [supplemental_code],al
lods byte [esi]
call get_size_operator
cmp al,10h
je pextr_reg
cmp al,'['
jne invalid_operand
call get_address
mov al,[mmx_size]
cmp al,[operand_size]
je pextr_size_ok
cmp [operand_size],0
jne invalid_operand_size
pextr_size_ok:
push edx ebx ecx
mov [operand_size],0
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
mov [postbyte_register],al
pop ecx ebx edx
jmp mmx_imm8
pextr_reg:
lods byte [esi]
call convert_register
cmp [mmx_size],4
ja pextrq_reg
cmp ah,4
je pextr_reg_size_ok
cmp [code_type],64
jne pextr_invalid_size
cmp ah,8
je pextr_reg_size_ok
pextr_invalid_size:
jmp invalid_operand_size
pextrq_reg:
cmp ah,8
jne pextr_invalid_size
call operand_64bit
pextr_reg_size_ok:
mov [operand_size],0
push eax
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
mov ebx,eax
pop eax
mov [postbyte_register],al
mov al,ah
cmp [mmx_size],2
jne pextr_reg_store
mov [opcode_prefix],0
mov [extended_code],0C5h
call make_mmx_prefix
jmp mmx_nomem_imm8
pextr_reg_store:
cmp bh,16
jne invalid_operand_size
xchg bl,[postbyte_register]
call operand_autodetect
jmp mmx_nomem_imm8
pinsrb_instruction:
mov [mmx_size],1
jmp pinsr_instruction
pinsrd_instruction:
mov [mmx_size],4
jmp pinsr_instruction
pinsrq_instruction:
mov [mmx_size],8
jmp pinsr_instruction
pinsr_instruction:
mov [opcode_prefix],66h
mov [base_code],0Fh
mov [extended_code],3Ah
mov [supplemental_code],al
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
mov [postbyte_register],al
mov [operand_size],0
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
je pinsr_xmmreg_reg
cmp al,'['
jne invalid_operand
call get_address
cmp [operand_size],0
je mmx_imm8
mov al,[mmx_size]
cmp al,[operand_size]
je mmx_imm8
jmp invalid_operand_size
pinsr_xmmreg_reg:
lods byte [esi]
call convert_register
mov bl,al
cmp [mmx_size],8
je pinsrq_xmmreg_reg
cmp ah,4
je mmx_nomem_imm8
jmp invalid_operand_size
pinsrq_xmmreg_reg:
cmp ah,8
je mmx_nomem_imm8
jmp invalid_operand_size
pmovsxbw_instruction:
mov [mmx_size],8
jmp pmovsx_instruction
pmovsxbd_instruction:
mov [mmx_size],4
jmp pmovsx_instruction
pmovsxbq_instruction:
mov [mmx_size],2
jmp pmovsx_instruction
pmovsxwd_instruction:
mov [mmx_size],8
jmp pmovsx_instruction
pmovsxwq_instruction:
mov [mmx_size],4
jmp pmovsx_instruction
pmovsxdq_instruction:
mov [mmx_size],8
pmovsx_instruction:
mov [opcode_prefix],66h
mov [base_code],0Fh
mov [extended_code],38h
mov [supplemental_code],al
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
mov [postbyte_register],al
lods byte [esi]
cmp al,','
jne invalid_operand
mov [operand_size],0
lods byte [esi]
call get_size_operator
cmp al,10h
je pmovsx_xmmreg_reg
cmp al,'['
jne invalid_operand
call get_address
cmp [operand_size],0
je mmx_imm8
mov al,[mmx_size]
cmp al,[operand_size]
jne invalid_operand_size
jmp instruction_ready
pmovsx_xmmreg_reg:
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
mov bl,al
jmp nomem_instruction_ready
fxsave_instruction:
mov [extended_code],0AEh
mov [base_code],0Fh
mov [postbyte_register],al
lods byte [esi]
call get_size_operator
cmp al,'['
jne invalid_operand
call get_address
mov ah,[operand_size]
or ah,ah
jz fxsave_size_ok
mov al,[postbyte_register]
cmp al,111b
je clflush_size_check
cmp al,10b
jb invalid_operand_size
cmp al,11b
ja invalid_operand_size
cmp ah,4
jne invalid_operand_size
jmp fxsave_size_ok
clflush_size_check:
cmp ah,1
jne invalid_operand_size
fxsave_size_ok:
jmp instruction_ready
prefetch_instruction:
mov [extended_code],18h
prefetch_mem_8bit:
mov [base_code],0Fh
mov [postbyte_register],al
lods byte [esi]
call get_size_operator
cmp al,'['
jne invalid_operand
or ah,ah
jz prefetch_size_ok
cmp ah,1
jne invalid_operand_size
prefetch_size_ok:
call get_address
jmp instruction_ready
amd_prefetch_instruction:
mov [extended_code],0Dh
jmp prefetch_mem_8bit
fence_instruction:
mov bl,al
mov ax,0AE0Fh
stos word [edi]
mov al,bl
stos byte [edi]
jmp instruction_assembled
pause_instruction:
mov ax,90F3h
stos word [edi]
jmp instruction_assembled
movntq_instruction:
mov [mmx_size],8
jmp movnt_instruction
movntps_instruction:
mov [mmx_size],16
jmp movnt_instruction
movntdq_instruction:
mov [opcode_prefix],66h
mov [mmx_size],16
movnt_instruction:
mov [extended_code],al
mov [base_code],0Fh
lods byte [esi]
call get_size_operator
cmp al,'['
jne invalid_operand
call get_address
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
cmp ah,[mmx_size]
jne invalid_operand_size
mov [postbyte_register],al
jmp instruction_ready
movntsd_instruction:
mov [opcode_prefix],0F2h
mov [mmx_size],8
jmp movnts_instruction
movntss_instruction:
mov [opcode_prefix],0F3h
mov [mmx_size],4
movnts_instruction:
mov [extended_code],al
mov [base_code],0Fh
lods byte [esi]
call get_size_operator
cmp al,'['
jne invalid_operand
call get_address
mov al,[operand_size]
cmp al,[mmx_size]
je movnts_size_ok
test al,al
jnz invalid_operand_size
movnts_size_ok:
lods byte [esi]
cmp al,','
jne invalid_operand
mov [operand_size],0
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
mov [postbyte_register],al
jmp instruction_ready
movnti_instruction:
mov [base_code],0Fh
mov [extended_code],al
lods byte [esi]
call get_size_operator
cmp al,'['
jne invalid_operand
call get_address
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
cmp ah,4
je movnti_store
cmp ah,8
jne invalid_operand_size
call operand_64bit
movnti_store:
mov [postbyte_register],al
jmp instruction_ready
monitor_instruction:
mov [postbyte_register],al
cmp byte [esi],0
je monitor_instruction_store
cmp byte [esi],0Fh
je monitor_instruction_store
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
cmp ax,0400h
jne invalid_operand
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
cmp ax,0401h
jne invalid_operand
cmp [postbyte_register],0C8h
jne monitor_instruction_store
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
cmp ax,0402h
jne invalid_operand
monitor_instruction_store:
mov ax,010Fh
stos word [edi]
mov al,[postbyte_register]
stos byte [edi]
jmp instruction_assembled
movntdqa_instruction:
mov [opcode_prefix],66h
mov [base_code],0Fh
mov [extended_code],38h
mov [supplemental_code],2Ah
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
mov [postbyte_register],al
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,'['
jne invalid_operand
call get_address
jmp instruction_ready
extrq_instruction:
mov [opcode_prefix],66h
mov [base_code],0Fh
mov [extended_code],78h
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
mov [postbyte_register],al
mov [operand_size],0
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
je extrq_xmmreg_xmmreg
test ah,not 1
jnz invalid_operand_size
cmp al,'('
jne invalid_operand
xor bl,bl
xchg bl,[postbyte_register]
call store_nomem_instruction
call get_byte_value
stosb
call append_imm8
jmp instruction_assembled
extrq_xmmreg_xmmreg:
inc [extended_code]
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
mov bl,al
jmp nomem_instruction_ready
insertq_instruction:
mov [opcode_prefix],0F2h
mov [base_code],0Fh
mov [extended_code],78h
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
mov [postbyte_register],al
mov [operand_size],0
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_mmx_register
cmp ah,16
jne invalid_operand_size
mov bl,al
cmp byte [esi],','
je insertq_with_imm
inc [extended_code]
jmp nomem_instruction_ready
insertq_with_imm:
call store_nomem_instruction
call append_imm8
call append_imm8
jmp instruction_assembled
crc32_instruction:
mov [opcode_prefix],0F2h
mov [base_code],0Fh
mov [extended_code],38h
mov [supplemental_code],0F0h
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
mov [postbyte_register],al
cmp ah,8
je crc32_reg64
cmp ah,4
jne invalid_operand
lods byte [esi]
cmp al,','
jne invalid_operand
mov [operand_size],0
lods byte [esi]
call get_size_operator
cmp al,10h
je crc32_reg32_reg
cmp al,'['
jne invalid_operand
call get_address
mov al,[operand_size]
test al,al
jz crc32_unknown_size
cmp al,1
je crc32_reg32_mem_store
cmp al,4
ja invalid_operand_size
inc [supplemental_code]
call operand_autodetect
crc32_reg32_mem_store:
jmp instruction_ready
crc32_unknown_size:
cmp [error_line],0
jne crc32_reg32_mem_store
mov eax,[current_line]
mov [error_line],eax
mov [error],operand_size_not_specified
jmp crc32_reg32_mem_store
crc32_reg32_reg:
lods byte [esi]
call convert_register
mov bl,al
mov al,ah
cmp al,1
je crc32_reg32_reg_store
cmp al,4
ja invalid_operand_size
inc [supplemental_code]
call operand_autodetect
crc32_reg32_reg_store:
jmp nomem_instruction_ready
crc32_reg64:
lods byte [esi]
cmp al,','
jne invalid_operand
mov [operand_size],0
call operand_64bit
lods byte [esi]
call get_size_operator
cmp al,10h
je crc32_reg64_reg
cmp al,'['
jne invalid_operand
call get_address
mov ah,[operand_size]
mov al,8
test ah,ah
jz crc32_unknown_size
cmp ah,1
je crc32_reg32_mem_store
cmp ah,al
jne invalid_operand_size
inc [supplemental_code]
jmp crc32_reg32_mem_store
crc32_reg64_reg:
lods byte [esi]
call convert_register
mov bl,al
mov al,8
cmp ah,1
je crc32_reg32_reg_store
cmp ah,al
jne invalid_operand_size
inc [supplemental_code]
jmp crc32_reg32_reg_store
popcnt_instruction:
mov [opcode_prefix],0F3h
jmp bs_instruction
movbe_instruction:
mov [supplemental_code],al
mov [extended_code],38h
mov [base_code],0Fh
lods byte [esi]
call get_size_operator
cmp al,'['
je movbe_mem
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
mov [postbyte_register],al
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
; cmp al,10h
; je movbe_reg_reg
cmp al,'['
jne invalid_argument
call get_address
mov al,[operand_size]
call operand_autodetect
jmp instruction_ready
; movbe_reg_reg:
; lods byte [esi]
; call convert_register
; mov bl,al
; mov al,ah
; call operand_autodetect
; jmp nomem_instruction_ready
movbe_mem:
inc [supplemental_code]
call get_address
push edx ebx ecx
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
mov [postbyte_register],al
pop ecx ebx edx
mov al,[operand_size]
call operand_autodetect
jmp instruction_ready
simple_vmx_instruction:
mov ah,al
mov al,0Fh
stos byte [edi]
mov al,1
stos word [edi]
jmp instruction_assembled
vmclear_instruction:
mov [opcode_prefix],66h
jmp vmx_instruction
vmxon_instruction:
mov [opcode_prefix],0F3h
vmx_instruction:
mov [postbyte_register],al
mov [extended_code],0C7h
lods byte [esi]
call get_size_operator
cmp al,'['
jne invalid_operand
call get_address
mov al,[operand_size]
or al,al
jz vmx_size_ok
cmp al,8
jne invalid_operand_size
vmx_size_ok:
mov [base_code],0Fh
jmp instruction_ready
vmread_instruction:
mov [extended_code],78h
lods byte [esi]
call get_size_operator
cmp al,10h
je vmread_nomem
cmp al,'['
jne invalid_operand
call get_address
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
mov [postbyte_register],al
call vmread_check_size
jmp vmx_size_ok
vmread_nomem:
lods byte [esi]
call convert_register
push eax
call vmread_check_size
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
mov [postbyte_register],al
call vmread_check_size
pop ebx
mov [base_code],0Fh
jmp nomem_instruction_ready
vmread_check_size:
cmp [code_type],64
je vmread_long
cmp [operand_size],4
jne invalid_operand_size
ret
vmread_long:
cmp [operand_size],8
jne invalid_operand_size
ret
vmwrite_instruction:
mov [extended_code],79h
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
mov [postbyte_register],al
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
je vmwrite_nomem
cmp al,'['
jne invalid_operand
call get_address
call vmread_check_size
jmp vmx_size_ok
vmwrite_nomem:
lods byte [esi]
call convert_register
mov bl,al
mov [base_code],0Fh
jmp nomem_instruction_ready
vmx_inv_instruction:
mov [opcode_prefix],66h
mov [extended_code],38h
mov [supplemental_code],al
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
mov [postbyte_register],al
call vmread_check_size
mov [operand_size],0
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,'['
jne invalid_operand
call get_address
mov al,[operand_size]
or al,al
jz vmx_size_ok
cmp al,16
jne invalid_operand_size
jmp vmx_size_ok
simple_svm_instruction:
push eax
mov [base_code],0Fh
mov [extended_code],1
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
or al,al
jnz invalid_operand
simple_svm_detect_size:
cmp ah,2
je simple_svm_16bit
cmp ah,4
je simple_svm_32bit
cmp [code_type],64
jne invalid_operand_size
jmp simple_svm_store
simple_svm_16bit:
cmp [code_type],16
je simple_svm_store
cmp [code_type],64
je invalid_operand_size
jmp prefixed_svm_store
simple_svm_32bit:
cmp [code_type],32
je simple_svm_store
prefixed_svm_store:
mov al,67h
stos byte [edi]
simple_svm_store:
call store_instruction_code
pop eax
stos byte [edi]
jmp instruction_assembled
skinit_instruction:
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
cmp ax,0400h
jne invalid_operand
mov al,0DEh
jmp simple_vmx_instruction
invlpga_instruction:
push eax
mov [base_code],0Fh
mov [extended_code],1
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
or al,al
jnz invalid_operand
mov bl,ah
mov [operand_size],0
lods byte [esi]
cmp al,','
jne invalid_operand
lods byte [esi]
call get_size_operator
cmp al,10h
jne invalid_operand
lods byte [esi]
call convert_register
cmp ax,0401h
jne invalid_operand
mov ah,bl
jmp simple_svm_detect_size
convert_register:
mov ah,al
shr ah,4
and al,0Fh
cmp ah,8
je match_register_size
cmp ah,4
ja invalid_operand
cmp ah,1
ja match_register_size
cmp al,4
jb match_register_size
or ah,ah
jz high_byte_register
or [rex_prefix],40h
match_register_size:
cmp ah,[operand_size]
je register_size_ok
cmp [operand_size],0
jne operand_sizes_do_not_match
mov [operand_size],ah
register_size_ok:
ret
high_byte_register:
mov ah,1
or [rex_prefix],80h
jmp match_register_size
convert_fpu_register:
mov ah,al
shr ah,4
and al,111b
cmp ah,10
jne invalid_operand
jmp match_register_size
convert_mmx_register:
mov ah,al
shr ah,4
cmp ah,0Ch
je xmm_register
ja invalid_operand
and al,111b
cmp ah,0Bh
jne invalid_operand
mov ah,8
jmp match_register_size
xmm_register:
and al,0Fh
mov ah,16
cmp al,8
jb match_register_size
cmp [code_type],64
jne invalid_operand
jmp match_register_size
get_size_operator:
xor ah,ah
cmp al,11h
jne no_size_operator
mov [size_declared],1
lods word [esi]
xchg al,ah
mov [size_override],1
cmp ah,[operand_size]
je size_operator_ok
cmp [operand_size],0
jne operand_sizes_do_not_match
mov [operand_size],ah
size_operator_ok:
ret
no_size_operator:
mov [size_declared],0
cmp al,'['
jne size_operator_ok
mov [size_override],0
ret
get_jump_operator:
mov [jump_type],0
cmp al,12h
jne jump_operator_ok
lods word [esi]
mov [jump_type],al
mov al,ah
jump_operator_ok:
ret
get_address:
mov [segment_register],0
mov [address_size],0
mov al,[code_type]
shr al,3
mov [value_size],al
mov al,[esi]
and al,11110000b
cmp al,60h
jne get_size_prefix
lods byte [esi]
sub al,60h
mov [segment_register],al
mov al,[esi]
and al,11110000b
get_size_prefix:
cmp al,70h
jne address_size_prefix_ok
lods byte [esi]
sub al,70h
cmp al,2
jb invalid_address_size
cmp al,8
ja invalid_address_size
mov [address_size],al
mov [value_size],al
address_size_prefix_ok:
call calculate_address
cmp byte [esi-1],']'
jne invalid_address
mov [address_high],edx
mov edx,eax
cmp [code_type],64
jne address_ok
or bx,bx
jnz address_ok
test ch,0Fh
jnz address_ok
calculate_relative_address:
mov edx,[address_symbol]
mov [symbol_identifier],edx
mov edx,[address_high]
call calculate_relative_offset
mov [address_high],edx
cdq
cmp edx,[address_high]
je address_high_ok
cmp [error_line],0
jne address_high_ok
mov ebx,[current_line]
mov [error_line],ebx
mov [error],value_out_of_range
address_high_ok:
mov edx,eax
ror ecx,16
mov cl,[value_type]
rol ecx,16
mov bx,0FF00h
address_ok:
ret
operand_16bit:
cmp [code_type],16
je size_prefix_ok
mov [operand_prefix],66h
ret
operand_32bit:
cmp [code_type],16
jne size_prefix_ok
mov [operand_prefix],66h
size_prefix_ok:
ret
operand_64bit:
cmp [code_type],64
jne illegal_instruction
or [rex_prefix],48h
ret
operand_autodetect:
cmp al,2
je operand_16bit
cmp al,4
je operand_32bit
cmp al,8
je operand_64bit
jmp invalid_operand_size
store_segment_prefix_if_necessary:
mov al,[segment_register]
or al,al
jz segment_prefix_ok
cmp al,3
je ss_prefix
cmp al,4
ja segment_prefix_386
jb segment_prefix_86
cmp bl,25h
je segment_prefix_86
cmp bh,25h
je segment_prefix_86
cmp bh,45h
je segment_prefix_86
cmp bh,44h
je segment_prefix_86
ret
ss_prefix:
cmp bl,25h
je segment_prefix_ok
cmp bh,25h
je segment_prefix_ok
cmp bh,45h
je segment_prefix_ok
cmp bh,44h
je segment_prefix_ok
jmp segment_prefix_86
store_segment_prefix:
mov al,[segment_register]
or al,al
jz segment_prefix_ok
cmp al,5
jae segment_prefix_386
segment_prefix_86:
dec al
shl al,3
add al,26h
stos byte [edi]
jmp segment_prefix_ok
segment_prefix_386:
add al,64h-5
stos byte [edi]
segment_prefix_ok:
ret
store_instruction_code:
mov al,[operand_prefix]
or al,al
jz operand_prefix_ok
stos byte [edi]
operand_prefix_ok:
mov al,[opcode_prefix]
or al,al
jz opcode_prefix_ok
stos byte [edi]
opcode_prefix_ok:
mov al,[rex_prefix]
test al,40h
jz rex_prefix_ok
cmp [code_type],64
jne invalid_operand
test al,0B0h
jnz prefix_conflict
stos byte [edi]
rex_prefix_ok:
mov al,[base_code]
stos byte [edi]
cmp al,0Fh
jne instruction_code_ok
store_extended_code:
mov al,[extended_code]
stos byte [edi]
cmp al,38h
je store_supplemental_code
cmp al,3Ah
je store_supplemental_code
instruction_code_ok:
ret
store_supplemental_code:
mov al,[supplemental_code]
stos byte [edi]
ret
store_nomem_instruction:
test [postbyte_register],1000b
jz nomem_reg_code_ok
or [rex_prefix],44h
and [postbyte_register],111b
nomem_reg_code_ok:
test bl,1000b
jz nomem_rm_code_ok
or [rex_prefix],41h
and bl,111b
nomem_rm_code_ok:
call store_instruction_code
mov al,[postbyte_register]
shl al,3
or al,bl
or al,11000000b
stos byte [edi]
ret
store_instruction:
mov [current_offset],edi
test [postbyte_register],1000b
jz reg_code_ok
or [rex_prefix],44h
and [postbyte_register],111b
reg_code_ok:
call store_segment_prefix_if_necessary
or bx,bx
jz address_immediate
cmp bx,0F800h
je address_rip_based
cmp bx,0F400h
je address_eip_based
cmp bx,0FF00h
je address_relative
mov al,bl
or al,bh
and al,11110000b
cmp al,80h
je postbyte_64bit
cmp al,40h
je postbyte_32bit
cmp al,20h
jne invalid_address
cmp [code_type],64
je invalid_address_size
call address_16bit_prefix
call store_instruction_code
cmp bl,bh
jbe determine_16bit_address
xchg bl,bh
determine_16bit_address:
cmp bx,2600h
je address_si
cmp bx,2700h
je address_di
cmp bx,2300h
je address_bx
cmp bx,2500h
je address_bp
cmp bx,2625h
je address_bp_si
cmp bx,2725h
je address_bp_di
cmp bx,2723h
je address_bx_di
cmp bx,2623h
jne invalid_address
address_bx_si:
xor al,al
jmp postbyte_16bit
address_bx_di:
mov al,1
jmp postbyte_16bit
address_bp_si:
mov al,10b
jmp postbyte_16bit
address_bp_di:
mov al,11b
jmp postbyte_16bit
address_si:
mov al,100b
jmp postbyte_16bit
address_di:
mov al,101b
jmp postbyte_16bit
address_bx:
mov al,111b
jmp postbyte_16bit
address_bp:
mov al,110b
postbyte_16bit:
test ch,22h
jnz address_16bit_value
or ch,ch
jnz address_sizes_do_not_agree
cmp edx,10000h
jge value_out_of_range
cmp edx,-8000h
jl value_out_of_range
or dx,dx
jz address
cmp dx,80h
jb address_8bit_value
cmp dx,-80h
jae address_8bit_value
address_16bit_value:
or al,10000000b
mov cl,[postbyte_register]
shl cl,3
or al,cl
stos byte [edi]
mov eax,edx
stos word [edi]
ret
address_8bit_value:
or al,01000000b
mov cl,[postbyte_register]
shl cl,3
or al,cl
stos byte [edi]
mov al,dl
stos byte [edi]
cmp dx,80h
jge value_out_of_range
cmp dx,-80h
jl value_out_of_range
ret
address:
cmp al,110b
je address_8bit_value
mov cl,[postbyte_register]
shl cl,3
or al,cl
stos byte [edi]
ret
postbyte_32bit:
call address_32bit_prefix
jmp address_prefix_ok
postbyte_64bit:
cmp [code_type],64
jne invalid_address_size
address_prefix_ok:
cmp bl,44h
je swap_base_with_index
cmp bl,84h
jne base_register_ok
swap_base_with_index:
cmp cl,1
jne invalid_address
xchg bl,bh
cmp bl,44h
je invalid_address
cmp bl,84h
je invalid_address
base_register_ok:
test bh,1000b
jz base_code_ok
or [rex_prefix],41h
base_code_ok:
test bl,1000b
jz index_code_ok
or [rex_prefix],42h
index_code_ok:
call store_instruction_code
or cl,cl
jz only_base_register
base_and_index:
mov al,100b
xor ah,ah
cmp cl,1
je scale_ok
cmp cl,2
je scale_1
cmp cl,4
je scale_2
or ah,11000000b
jmp scale_ok
scale_2:
or ah,10000000b
jmp scale_ok
scale_1:
or ah,01000000b
scale_ok:
or bh,bh
jz only_index_register
and bl,111b
shl bl,3
or ah,bl
and bh,111b
or ah,bh
test ch,44h
jnz sib_address_32bit_value
test ch,88h
jnz sib_address_32bit_value
or ch,ch
jnz address_sizes_do_not_agree
cmp bh,5
je address_value
or edx,edx
jz sib_address
address_value:
cmp edx,80h
jb sib_address_8bit_value
cmp edx,-80h
jae sib_address_8bit_value
sib_address_32bit_value:
or al,10000000b
mov cl,[postbyte_register]
shl cl,3
or al,cl
stos word [edi]
address_32bit_value:
cmp [code_type],64
jne store_address_32bit_value
mov eax,edx
cdq
cmp edx,[address_high]
je address_32bit_value_ok
cmp [error_line],0
jne address_32bit_value_ok
mov edx,[current_line]
mov [error_line],edx
mov [error],value_out_of_range
address_32bit_value_ok:
mov edx,eax
jmp store_address_32bit_value
sib_address_8bit_value:
or al,01000000b
mov cl,[postbyte_register]
shl cl,3
or al,cl
stos word [edi]
mov al,dl
stos byte [edi]
cmp edx,80h
jge value_out_of_range
cmp edx,-80h
jl value_out_of_range
ret
sib_address:
mov cl,[postbyte_register]
shl cl,3
or al,cl
stos word [edi]
ret
only_index_register:
or ah,101b
and bl,111b
shl bl,3
or ah,bl
mov cl,[postbyte_register]
shl cl,3
or al,cl
stos word [edi]
test ch,44h
jnz address_32bit_value
test ch,88h
jnz address_32bit_value
or ch,ch
jnz invalid_address_size
jmp address_32bit_value
zero_index_register:
mov bl,4
mov cl,1
jmp base_and_index
only_base_register:
mov al,bh
and al,111b
cmp al,4
je zero_index_register
test ch,44h
jnz simple_address_32bit_value
test ch,88h
jnz simple_address_32bit_value
or ch,ch
jnz address_sizes_do_not_agree
or edx,edx
jz simple_address
cmp edx,80h
jb simple_address_8bit_value
cmp edx,-80h
jae simple_address_8bit_value
simple_address_32bit_value:
or al,10000000b
mov cl,[postbyte_register]
shl cl,3
or al,cl
stos byte [edi]
jmp address_32bit_value
simple_address_8bit_value:
or al,01000000b
mov cl,[postbyte_register]
shl cl,3
or al,cl
stos byte [edi]
mov al,dl
stos byte [edi]
cmp edx,80h
jge value_out_of_range
cmp edx,-80h
jl value_out_of_range
ret
simple_address:
cmp al,5
je simple_address_8bit_value
mov cl,[postbyte_register]
shl cl,3
or al,cl
stos byte [edi]
ret
address_immediate:
cmp [code_type],64
je address_immediate_sib
test ch,44h
jnz address_immediate_32bit
test ch,22h
jnz address_immediate_16bit
or ch,ch
jnz invalid_address_size
cmp [code_type],16
je addressing_16bit
address_immediate_32bit:
call address_32bit_prefix
call store_instruction_code
store_immediate_address:
mov al,101b
mov cl,[postbyte_register]
shl cl,3
or al,cl
stos byte [edi]
store_address_32bit_value:
test ch,0F0h
jz address_32bit_relocation_ok
mov eax,ecx
shr eax,16
cmp al,4
jne address_32bit_relocation
mov al,2
address_32bit_relocation:
xchg [value_type],al
mov ebx,[address_symbol]
xchg ebx,[symbol_identifier]
call mark_relocation
mov [value_type],al
mov [symbol_identifier],ebx
address_32bit_relocation_ok:
mov eax,edx
stos dword [edi]
ret
store_address_64bit_value:
test ch,0F0h
jz address_64bit_relocation_ok
mov eax,ecx
shr eax,16
xchg [value_type],al
mov ebx,[address_symbol]
xchg ebx,[symbol_identifier]
call mark_relocation
mov [value_type],al
mov [symbol_identifier],ebx
address_64bit_relocation_ok:
mov eax,edx
stos dword [edi]
mov eax,[address_high]
stos dword [edi]
ret
address_immediate_sib:
test ch,44h
jnz address_immediate_sib_32bit
test ch,not 88h
jnz invalid_address_size
xor eax,eax
bt edx,31
sbb eax,0
cmp eax,[address_high]
jne value_out_of_range
address_immediate_sib_store:
call store_instruction_code
mov al,100b
mov ah,100101b
mov cl,[postbyte_register]
shl cl,3
or al,cl
stos word [edi]
jmp store_address_32bit_value
address_immediate_sib_32bit:
test ecx,0FF0000h
jnz address_immediate_sib_nosignextend
test edx,80000000h
jz address_immediate_sib_store
address_immediate_sib_nosignextend:
call address_32bit_prefix
jmp address_immediate_sib_store
address_eip_based:
mov al,67h
stos byte [edi]
address_rip_based:
cmp [code_type],64
jne invalid_address
call store_instruction_code
jmp store_immediate_address
address_relative:
call store_instruction_code
movzx eax,[immediate_size]
add eax,edi
sub eax,[current_offset]
add eax,5
sub edx,eax
jo value_out_of_range
mov al,101b
mov cl,[postbyte_register]
shl cl,3
or al,cl
stos byte [edi]
shr ecx,16
xchg [value_type],cl
mov ebx,[address_symbol]
xchg ebx,[symbol_identifier]
mov eax,edx
call mark_relocation
mov [value_type],cl
mov [symbol_identifier],ebx
stos dword [edi]
ret
addressing_16bit:
cmp edx,10000h
jge address_immediate_32bit
cmp edx,-8000h
jl address_immediate_32bit
movzx edx,dx
address_immediate_16bit:
call address_16bit_prefix
call store_instruction_code
mov al,110b
mov cl,[postbyte_register]
shl cl,3
or al,cl
stos byte [edi]
mov eax,edx
stos word [edi]
cmp edx,10000h
jge value_out_of_range
cmp edx,-8000h
jl value_out_of_range
ret
address_16bit_prefix:
cmp [code_type],16
je instruction_prefix_ok
mov al,67h
stos byte [edi]
ret
address_32bit_prefix:
cmp [code_type],32
je instruction_prefix_ok
mov al,67h
stos byte [edi]
instruction_prefix_ok:
ret
store_instruction_with_imm8:
mov [immediate_size],1
call store_instruction
mov al,byte [value]
stos byte [edi]
ret
store_instruction_with_imm16:
mov [immediate_size],2
call store_instruction
mov ax,word [value]
call mark_relocation
stos word [edi]
ret
store_instruction_with_imm32:
mov [immediate_size],4
call store_instruction
mov eax,dword [value]
call mark_relocation
stos dword [edi]
ret